FULLY SERVICED & CALIBRATED
BACKED BY WARRANTY*
STEREO CASSETTE 
TAPE DECKS / RECORDERS / PLAYERS
VINTAGE AND RESTORED
 

 

A FEW OF OUR CASSETTE DECKS WAITING FOR A SPOT ON THE RESTORATION BENCHES...
(YES, WE HAVE OUR WORK 'CUT OUT FOR US')


  
OUR SERVICED / RESTORED CASSETTE TAPE DECKS:
 

          NEW LISTING 4/16/2022
 (Click on above thumbnails to enlarge photos) 
warranty
VINTAGE, REFURBISHED, FULLY SERVICED
NAKAMICHI CASSETTE TAPE DECK
NAKAMICHI RX-202
#...6682
With DOLBY B & C NR
"UDAR" (Unidirectional Auto Reverse) (the correct way!)
MADE IN JAPAN!
Circa early 1982-93 (that's a testament to this decks success as a design, as it was current for an 11 year time span!!!)
"WORLD AC POWER" ™
for sale

Initial 'pre-test' conditions; 'Control motor' doesn't move (even though Voltage is present momentarily). Mode motor finally started running with manual manipulation. Fast wind motor works, but no reel hub movement indicating failed idler tire.

ü Our technician has completely and EXTENSIVELY gone through and 'Certified' this unit which involves complete disassembly of the transport, DISASSEMBLING, removing old / stiff lubes, cleaning inside and out, cleaning and re-lubricating all internal mechanisms and the balance of efforts listed below.

ü Brand new, Reel hub 'drive' tires installed and 'pre-conditioned' (PRB #STC.5629).

ü Capstan Drive belt replaced with NEW for trouble-free service (does not utilize a 'counter' belt).

ü Slide chassis to Cam motor belt replaced w/ PRB #SQC4.8.

ü Rubber pinch roller has been resurfaced and reconditioned

ü Flywheel removed and Capstan burnished. Bushings cleaned and lubed.

ü Heads have been cleaned and de-magnetized as well as the entire transport.

ü All internal pots, switches and controls cleaned and tested for noise-free function.

ü Both spindles in perfect alignment.

ü FF, REW, Play, Eject and Auto-Reverse slide chassis / transport functions all test perfectly and controls tested for 'positive / accurate' responsive.

ü Eject operates properly.

ü Tape Counter Function tested

ü Both Dolby NR circuits tested

ü 'Memory / Zero Return' function tested

ü Heads are in great condition, with virtually no visible wear!

ü Pinch roller in GREAT condition!!!

ü Both level meters adjusted for even playback.

ü Head alignment and azimuth at 125Hz, 1kHz and 10kHz adjusted for BOTH directions for 'peak performance' with Oscilloscope and w/ STL and TEAC MTT-257H calibration / alignment tapes. Both channels now even output.

ü Both Internal playback amplifier channels adjusted with Volt meter, O-Scope and w/ STL and TEAC MTT-257H calibration / alignment tapes. Both channels now even output.

ü Meters adjusted to even zero with symmetric input with Volt meter, O-Scope and w/ STL and TEAC MTT-257H calibration / alignment tapes. Both channels now even output.

ü Both Internal Record amplifier channels adjusted with Volt meter, O-Scope and sine-wave generators and 'pink / white noise sources'. Both channels now even output.

ü Pinch roller and heads all in GREAT condition!!!

ü Speed adjusted to 100% accuracy BOTH directions, with with TEAC MTT-257H 1kHz factory calibration tape (meaning 1kHz calibration tape plays back at 1000Hz +/- 1 Hz.)

ü Plays perfectly and after adjustment, records AMAZINGLY well with 1kHz @ 0 dB = -1dB! on High bias type tapes. (Following the extensive restoration, we did 'test recordings' of a 'ddd' CD on Maxell 'XL-II' High Bias with the following results;
1kHz @ 0dB; L=-1dB & R=-1dB
PN @ 0dB; L=-1dB & R=-1dB
WN @ 0dB;  L=-1dB & R=-1dB
DDD Pre-Recorded CD material @ 0dB;  L=0 to -1dB & R=0 to -1dB
Bottom line is, it recorded amazingly well!

Cosmetically, there's some scuffs on a couple of the transport buttons, a small 'chip' on the well window corner, and some tic on the upper face surface. Camera and lighting actually make the blems show up more than they seem to in person (see photos above).
 Total technician time to restore ~11 HOURS!
  ____________________________

The Nakamichi RX-202, Auto-Reverse (the best way) Stereo Cassette Tape Deck. Great deck for doing your tape transfers if your tapes were recorded with no NR or with Dolby B or C.
It's also quite 'fun' to operate. While I sold these when new as a Nakamichi dealer back in the mid-late 1980's, I had forgotten how well they function. The transport commands are VERY precise and quick. You might think that if the tape has to come all the way out, flip a 180, then re-load and go back into play mode might take a few seconds. You might. However, in reality, I think it's less than and certainly seems like no more than about 1 second! It's quite the 'head turner' when it functions.

Nakamichi RX-202 Features include:
  
- 4 Motors (Capstan, Reel, 'Cam' {head control} and UDAR chassis)
- 3-Mode, "UDAR" (Unidirectional Auto Reverse) for related 'cool factor', check next feature
- Music-Sensing Circuit monitors playback and fast-forwards through blank 'tail' of tape to provide less interrupted playback when auto-reverse is engaged.
- Special, PR-2D R/P head separates the head into 2 parts so there's a head for playback and separate Record head instead of having them combined as they are in most "2 head" decks.
- Super-hard, Record / Playback heads
- Super Hard, High-Performance, Laminated Sendust, semi-discrete,' R/P head w/ EXTREMELY NARROW gap, allowing for 20-20,000Hz performance
- IC Logic / Touch tape transport with motor driven 'cam control mechanism' (From the original Nakamichi RX-202 brochure; "Microprocessor-controlled silent tape transport ensures smooth operation and minimum flutter")
- Selector for Normal (EX / I) & CrO2 (SX / II) & ZX (IV Metal) Tape Types
- Tape Type EQ selector for 120 or 70 μsec tape
 - Auto-Record Standby automatically rewinds the tape, skips over the leader, records a 6-second bland header and activates the "Record Standby Mode". Pressing twice during recording, Auto Rec Standby instantly advances the tape to the end, switches to Side-B, skips the leader, records a blank header and enters "Record Standby". Pretty cool if you do a lot of recording. This is especially handy if you start recording, the realize you screwed something up and need to start again. WAY less buttons to push.
- Electronic "Master Fader" for professional, 2 or 4-Second (selectable) Fade-In and Fade-Out when recording
- LED "VU" signal level meters w/ 37dB of range
- 4 Digit, digital tape counter
- MPX filter (for filtering the 19kHz pilot tone out of FM transmissions)
- Dolby B & C NR
- Variable Output Level (one of our favorite features on a tape deck)
- 1/4" Headphone jack (follows Output level control so you can control the volume without blasting your ears off)
- Record level control with L & R balance
- Memory Stop / Play for counter
- Standard RCA I/O's on rear panel
- Timer Play / Record (has the option to immediately engage "Play" or "Record" modes when power is sent to deck either via the 'Power' button or the AC Power cord via a switched outlet if the 'Power' button is already engaged)
- "WORLD AC POWER"™ allows unit to be operated on 50 or 60 Hz AC and 100-240V. Currently set up for US / North American AC power.

Nakamichi RX-202 Specifications:
 
Track format: 4 track / 2 channel
Motors: 2 DC Servo motors. 1 for capstan drive and one for reel hubs / fast wind
Freq Response; 20-12,000Hz +/- 3db w/ SX or EX Tapes @ -20dB
Wow & Flutter (WRMS): <0.11% WTD Peak / <0.06% WTD RMS
Tape Speed: 1-7/8 ips
Harmonic Distortion:  <1.0% @ 400Hz & 0dB
S/N ratio w/ CrO2 tape: >68dB @400Hz w/o Dolby C engaged and High Bias Tapes
>62dB @400Hz w/o Dolby B engaged and High Bias Tapes
Bias Frequency: 105KHz
Erasure: >60dB below saturation level @ 1kHz
Separation: >36dB @ 1kHz, 0dB
Crosstalk: >60dB @ 1kHz, 0dB
Line Input: 50mV & 30K Ohms
Line Output: 500mV w/ 400Hz = 0dB w/ Output control @ max with 2.2k Ohms impedance
Headphones Output: 2.2mW w/ 400Hz = 0dB w/ Output control @ max with 8 Ohms load
  
Again, following the above stated bench work / testing, our technician has 'Certified' this deck and it is an great performer sonically and mechanically. It's been fully serviced / completely gone through cleaning, lubing, adjusting, demagnetizing and testing.

Also great for transferring your no NR or Dolby NR encoded tape collection to CD, Hard-drive or MP3. Built very well! Cosmetically, again there's some scuffs on a couple of the transport buttons, a small 'chip' on the well window corner, and some tic on the upper face surface. Camera and lighting actually make the blems show up more than they seem to in person (see photos above). Looks decent, works and sounds great. Comes with an 'e-copy' / pdf of the Nakamichi RX-202 owners manual and Nakamichi RX-202 Brochure. Measures 17.75" wide x 10" deep x 5.5" tall and weighs 20 lbs unpacked. Includes our standard 90 day limited warranty. 
NAKAMICHI RX-202
Cond. 8.5
$1299.

(tape shown in photos not included. We do ship our decks with a  a 'pre-recorded' tape for playback, made on this 'specific' deck, and a tape to 'practice record' on.) 

(Above text, in it's entirety, property of www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright Information' page for details)

 

 

    

    

NEW LISTING 7/4/2022
 (Click on above thumbnails to enlarge photos)
warranty
VINTAGE, FULLY SERVICED / REFURBISHED
NAKAMICHI CASSETTE TAPE DECK
NAKAMICHI 480
#...3284
With DOLBY B NR
MADE IN JAPAN!
Circa early 1979-81
"*WORLD AC POWER" ™
SOLD 8/9/2022
SHIPPING TO KEVIN IN PENNSYLVANIA

Original issues; No tape motion at any level. Internal power supply was producing correct +5VAC, +24VDC, but missing +12VDC.

ü Our technician has completely and EXTENSIVELY gone through and 'Certified' this unit which involves complete disassembly of the transport (not an easy task on this table), cleaning inside and out, DISASSEMBLING, cleaning and re-lubricating all internal mechanisms and the balance of efforts listed below.

ü Replaced transistors; Q405 & Q406 to restore missing +12VDC on internal power supply. This restored the function of two of the motors.

ü Burnished contacts on reed switch of eject door which restored the function of third motor.

ü Record actuator cable mount repaired (this is pretty much required on any Nak utilizing this style transport, which would be most from this era and not a matter of "if", but "when" it will fail)

ü Eject actuator cable mount repaired (this is pretty much required on any Nak utilizing this style transport, which would be most from this era and not a matter of "if", but "when" it will fail)

ü Inspected entire transport nylon assemblies and repaired where necessary (quite important and unique to Nakamichis that this be done)

ü New and proper idler tire, ordered, 'pre-conditioned' and installed. 

ü Rubber pinch roller has been reconditioned

ü Both Capstan flywheels removed, cleaned, burnished and lubed

ü Heads have been cleaned and de-magnetized as well as the entire transport.

ü Head alignments and azimuth checked and adjusted as necessary for 'peak performance' with O-Scope

ü All internal pots, switches and controls cleaned and tested for noise-free function. 

ü Both spindles in perfect alignment.

ü All new Counter belts installed for trouble-free service 4.74 & 9.0 PRB.

ü New 'Mode' belt installed for trouble-free service SQC4.8 PRB.

ü New 'Capstan' belt installed for trouble-free service FRM10.2 PRB.

ü FF, REW, & Play transport functions all test perfectly and controls tested for 'positive / accurate' responsive. 

ü Eject door NOW operates smoothly following above mentioned operation.

ü Tape Counter Function tested

ü Dolby NR circuit tested 

ü 'Memory / Zero Return' function tested 

ü Heads are in 'AS-NEW' condition, with NO visible wear! 

ü Meters adjusted to even zero with symmetric input. 

ü Both pinch rollers and heads all in GREAT condition!!!

ü Head alignment and azimuth at 125Hz, 1kHz and 10kHz adjusted for BOTH directions for 'peak performance' with Oscilloscope and w/ STL and TEAC MTT-257H calibration / alignment tapes. Both channels now even output.

ü Both Internal playback amplifier channels adjusted with Volt meter, O-Scope and w/ STL and TEAC MTT-257H calibration / alignment tapes. Both channels now even output.

ü Meters adjusted to even zero with symmetric input with Volt meter, O-Scope and w/ STL and TEAC MTT-257H calibration / alignment tapes. Both channels now even output.

ü Both Internal Record amplifier channels adjusted with Volt meter, O-Scope and sine-wave generators and 'pink / white noise sources'. Both channels now even output.

ü Speed adjusted to 100% accuracy with 1kHz factory calibration tape (meaning 1kHz calibration tape plays back at 1000Hz +/- 2Hz) 

ü Cosmetics are in great condition. Deck works, sounds and looks great! 

ü  Plays perfectly and after adjustment, records AMAZINGLY well with 1kHz @ 0 dB = 0dB! on High bias type tapes. (Following the extensive restoration, we did 'test recordings' of a 'ddd' CD on Maxell 'XL-II' High Bias with the following results;
1kHz @ 0dB; L=0dB & R=0dB
PN @ 0dB; L=-2dB & R=-1dB
WN @ 0dB;  L=0dB & R=-1dB (again, that was when 'pushed' to 0dB @ record)
DDD Pre-Recorded CD material @ 0dB;  L=0 to -1dB & R=0 to -1dB
Bottom line is, it recorded amazingly well! While doing the test recording's, it became apparent that the recorded sound was fairly remarkable. Here's the deal. We sync'd up the recording we had just made, and the CD player and AB'd on our pre-amp between the CD and the Tape.
 Total technician time to restore ~22 HOURS! followed by 5 hours of playback and record testing in reference system.
  ____________________________

The Nakamichi 481, Closed-Loop / Dual Capstan, Stereo Cassette Tape Deck. Great deck for doing your tape transfers if your tapes were recorded with no NR or with Dolby B. Again, as stated above, records AMAZINGLY well!

Nakamichi 480 Features include:
  
- Asymmetrical Dual Flywheel capstan drive (virtually eliminates vibration, flutter and modulation noise emanating from tape transport mechanism)
Double-Capstan / Closed Loop tape transport for more consistent head contact
- Super Hard, High-Performance, 'SENDUST' R/P head w/ EXTREMELY NARROW gap, allowing for 20-20,000Hz performance
- IC logic "touch-control" tape transport with motor driven 'cam control mechanism'
- Selector for Normal (EX / I), CrO2 (SX / II) & Metal (ZX / IV)Tape Type
- Tape Type EQ selector for 120 or 70 μsec tape
- Analog "VU" signal level meters w/ 47dB of range
- Analog tape counter
- Auto 'Slack Take-up' when tape is loaded
- MPX filter (for filtering the 19kHz pilot tone out of FM transmissions)
- Dolby B NR
- Separate L&R Record level controls
- Memory Stop
- Front mounted 1/4", Stereo Headphone jack
- DIN on rear panel for optional wired remote (remote not included)
- *Semi "WORLD AC POWER"™ allows unit to be operated on 50 or 60 Hz AC (would require a transformer to operated on European / Asian AC volts). Currently set up for US / North American AC power.

Nakamichi 480 Specifications:
 
Track format: 4 track / 2 channel
Motors: 3
Freq Response; 20-20,000Hz +/- 3db w/ Metal Tape @ -20dB
Wow & Flutter (WRMS): 0.06% WTD RMS
Tape Speed: 1-7/8 ips +/-0.5% (but as stated above, we have adjusted to >0.2% accuracy!)
S/N ratio w/ CrO2 tape: >62db @400Hz (w/ Dolby engaged and High Bias Tapes)
The following specs based on the Nak 480;
Harmonic Distortion:  <1.0% @ 400Hz & 0dB (High Bias Tapes)
Bias Frequency: 105KHz
Erasure: >60dB below saturation level @ 1kHz
Separation: >36dB @ 1kHz, 0dB
Crosstalk: >60dB @ 1kHz, 0dB
Line Input: 50mV & 30K Ohms
Line Output: 600mV / 400Hz & 2.2K Ohms
Headphones Output: 10mW / 400Hz @ 8 Ohms
  
Purchased from the original owner. Again, we have completely cleaned, prepped and tested this Nakamichi 480 cassette tape deck.
Records and plays back VERY well as noted by test results mentioned earlier.
Cosmetically about the only thing worth mentioning are some very small scratches near the power switch (See photos above.)
Great for transferring your no NR or Dolby NR encoded tape collection to CD, Hard-drive or MP3. Built very well! Looks like new, works and sounds great. This one includes it's original Nakamichi 480 box and packing. Also comes with a of the Nakamichi 480 owners manual and "e-copy / pdf download" of the original Nakamichi 480 Brochure. Measures 17.75" wide x 11.5" deep x 5.5" tall and weighs 16 lbs unpacked. Includes our standard 90 day limited warranty. 
NAKAMICHI 480
Cond. 8.5+++
SOLD 8/9/2022
SHIPPING TO KEVIN IN PENNSYLVANIA
(C)
B.F.

(tape shown in photos not included. We do ship our decks with a  a 'pre-recorded' tape for playback, made on this 'specific' deck, and a tape to 'practice record' on.) 

(Above text, in it's entirety, property of www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright Information' page for details)

 

     

FINALLY, A FEW MORE BACK IN STOCK
(Click on above thumbnails to enlarge photos)
MINIATURE / MINI REEL TO REEL
CASSETTE TAPES TAPE
for sale
We just bought a very limited quantity of these "mini-reel to reel" cassette tapes. Follow this link to order...Click Here 
 

Did you know?
3-Heads vs 2-Heads; 'Normal / 2-head' decks have an erase head and a 'combination' playback / record head that serves 'double duty' depending on whether it was being sent a 'record signal' or receiving a 'playback signal', thus the "2-heads". Most 'higher end' cassette tape decks / recorders offered '3-Heads' for superior 'recording' performance. The 'Third-head' was a separate playback head, positioned immediately after the record head to allow 'almost instantaneous' (about a third second behind, as a cassette shell only has 'so many openings') monitoring of the actual recorded signal on the tape, as opposed to simply monitoring the 'input' signal to the deck. However, the '3rd-head' 'generally' does nothing for playback of already recorded tapes. There's some credence to the argument that playback heads can have a closer 'gap' designed into them than record heads, so if you get a '3-head' deck that has a playback head with a closer gap, then it would (could) offer better playback performance. Possibly, if you check the specs (if available) and find that is the case, the heads aren't worn and the balance of the deck is of substantial quality. Many better 2-head decks offered playback heads in the 18-20kHz.
I get a lot of folks that are shopping for cassette decks, with only the purpose of 'playing back' their old tapes, but thinking they want a 'Three-Head Cassette Tape Deck' because they've been 'told' that it would be better quality. Since the third head does 'little to potentially nothing' for playback (except it does make doing final audio adjustments / fine biasing adjustments when servicing MUCH easier), there's minimal reason to hold out for that feature, nor to pay extra for it…unless you just want it, or you ARE going to be 'recording' or it's coming along on a deck that has other features you wish. Now if you are going to be 'recording' then I 'HIGHLY' recommend a deck with 'Tape Monitoring' via the third head, thus "3-Heads"!

         

           NEW LISTING 4/16/2022
 (Click on above thumbnails to enlarge photos)
warranty
PRE-OWNED / REFURBISHED
NAKAMICHI CASSETTE TAPE DECK
NAKAMICHI 481
#...1719
With DOLBY B NR
MADE IN JAPAN!
Circa early 1979-81
"*WORLD AC POWER" ™
SOLD 7/25/2022
SHIPPING TO ALEX IN ONTARIO CANADA

Initial 'pre-test' conditions; Fast Wind typically sluggish / intermittent / eats tapes (almost always due to rubber, idler tire issues). Play 'tries' to engage, but immediately disengages. Won't go into 'Record' mode (likely due to broken actuator cable mount which is typical of Nakamichi decks that use this transport), Eject 'iffy' (likely due to broken actuator cable mount which is typical of Nakamichi decks that use this transport). 'Left Channel' level fader lever broken off. Missing that knob / cap.

ü Our technician has completely and EXTENSIVELY gone through and 'Certified' this unit which involves complete disassembly of the transport (not an easy task on this table), cleaning inside and out, DISASSEMBLING, cleaning and re-lubricating all internal mechanisms and the balance of efforts listed below.

ü Internal power supply tested to 11.89VDC

ü Record actuator cable mount repaired (this is pretty much required on any Nak utilizing this style transport, which would be most from this era and not a matter of "if", but "when" it will fail)

ü Eject actuator cable mount repaired (this is pretty much required on any Nak utilizing this style transport, which would be most from this era and not a matter of "if", but "when" it will fail)

ü Inspected entire transport nylon assemblies and repaired where necessary (quite important and unique to Nakamichis that this be done)

ü New and proper idler tire 'pre-conditioned' and installed. 

ü Rubber pinch roller has been reconditioned

ü Capstan burnished / flywheel removed, cleaned, burnished and lubed

ü Heads have been cleaned and de-magnetized as well as the entire transport.

ü Head alignments and azimuth checked and adjusted as necessary for 'peak performance' with O-Scope

ü All internal pots, switches and controls cleaned and tested for noise-free function. 

ü Both spindles in perfect alignment.

ü All new Counter belts installed for trouble-free service 4.74 & 9.0 PRB.

ü New 'Mode' belt installed for trouble-free service SQC4.8 PRB.

ü New 'Capstan' belt installed for trouble-free service FRM10.2 PRB. 

ü FF, REW, & Play transport functions all test perfectly and controls tested for 'positive / accurate' responsive. 

ü Eject door NOW operates smoothly following above mentioned operation.

ü Tape Counter Function tested

ü Dolby NR circuit tested 

ü 'Memory / Zero Return' function tested 

ü Heads are in 'AS-NEW' condition, with NO visible wear! 

ü Meters adjusted to even zero with symmetric input. 

ü Both pinch rollers and heads all in GREAT condition!!!

ü Head alignment and azimuth at 125Hz, 1kHz and 10kHz adjusted for BOTH directions for 'peak performance' with Oscilloscope and w/ STL and TEAC MTT-257H calibration / alignment tapes. Both channels now even output.

ü Both Internal playback amplifier channels adjusted with Volt meter, O-Scope and w/ STL and TEAC MTT-257H calibration / alignment tapes. Both channels now even output.

ü Meters adjusted to even zero with symmetric input with Volt meter, O-Scope and w/ STL and TEAC MTT-257H calibration / alignment tapes. Both channels now even output.

ü Both Internal Record amplifier channels adjusted with Volt meter, O-Scope and sine-wave generators and 'pink / white noise sources'. Both channels now even output.

ü Speed adjusted to 100% accuracy with 1kHz factory calibration tape (meaning 1kHz calibration tape plays back at 1000Hz +/- 1Hz) 

ü Cosmetics are in great condition. Deck works, sounds and looks great! 

ü  Plays perfectly and after adjustment, records AMAZINGLY well with 1kHz @ 0 dB = 0dB! on High bias type tapes. (Following the extensive restoration, we did 'test recordings' of a 'ddd' CD on Maxell 'XL-II' High Bias with the following results;
1kHz @ 0dB; L=0dB & R=0dB
PN @ 0dB; L=-2dB & R=-1dB
WN @ 0dB;  L=-45dB & R=-4dB (again, that was when 'pushed' to 0dB @ record)
DDD Pre-Recorded CD material @ 0dB;  L=0 to -1dB & R=0 to -1dB
Bottom line is, it recorded amazingly well! While doing the test recording's, it became apparent that the recorded sound was fairly remarkable. Here's the deal. We sync'd up the recording we had just made, and the CD player and AB'd on our pre-amp between the CD and the Tape. Not only was there little to no 'level loss' (it's a cassette, there should have been!!!), but the tape actually had a bit more brilliance and 'natural' top end to it by a couple to 3 dB's!!!)
 Total technician time to restore ~19 HOURS!
  ____________________________

The Nakamichi 481, Closed-Loop / Dual Capstan, Stereo Cassette Tape Deck. Great deck for doing your tape transfers if your tapes were recorded with no NR or with Dolby B. Again, as stated above, records AMAZINGLY well!

Nakamichi 481 Features include:
  
- Asymmetrical Dual Flywheel capstan drive
Double-Capstan / Closed Loop tape transport for more consistent head contact
- Discrete PB & REC Heads means that there are two separate heads unlike the vast majority of decks that utilize the same head for both tasks (different than most "three head" decks in that there isn't a 'monitor' function)
- Super Hard, High-Performance, 'SENDUST' R/P head w/ EXTREMELY NARROW gap, allowing for 20-20,000Hz performance
- IC logic "touch-control" tape transport with motor driven 'cam control mechanism'
- Selector for Normal (EX / I), CrO2 (SX / II) & Metal (ZX / IV)Tape Type
- Tape Type EQ selector for 120 or 70 μsec tape
- Analog "VU" signal level meters w/ 47dB of range
- Analog tape counter
- Auto 'Slack Take-up' when tape is loaded
- MPX filter (for filtering the 19kHz pilot tone out of FM transmissions)
- Dolby B NR
- Separate L&R Record level controls
- Memory Stop
- Front mounted 1/4", Stereo Headphone jack
- DIN on rear panel for optional wired remote (remote not included)
- *Semi "WORLD AC POWER"™ allows unit to be operated on 50 or 60 Hz AC (would require a transformer to operated on European / Asian AC volts). Currently set up for US / North American AC power.

Nakamichi 481 Specifications:
 
Track format: 4 track / 2 channel
Motors: 3
Freq Response; 20-20,000Hz +/- 3db w/ Metal Tape @ -20dB
Wow & Flutter (WRMS): 0.06% WTD RMS
Tape Speed: 1-7/8 ips +/-0.5% (but as stated above, we have adjusted to 0.1% accuracy!)
S/N ratio w/ CrO2 tape: >63db @400Hz (w/ Dolby engaged and High Bias Tapes)
The following specs based on the Nak 480;
Harmonic Distortion:  <1.0% @ 400Hz & 0dB (High Bias Tapes)
Bias Frequency: 105KHz
Erasure: >60dB below saturation level @ 1kHz
Separation: >36dB @ 1kHz, 0dB
Crosstalk: >60dB @ 1kHz, 0dB
Line Input: 50mV & 30K Ohms
Line Output: 600mV & 2.2K Ohms
Headphones Output: 10mW @ 8 Ohms
  
Again, we have completely cleaned, prepped and tested this Nakamichi 481 cassette tape deck.
Records and plays back VERY well as noted by test results mentioned earlier.
Cosmetically about the only thing worth mentioning is that there are some minor scuffs on the top edge surface of the front panel (probably from a CD player or EQ sitting on top at some point) that's only seen when viewed from above (See photos above.)
Great for transferring your no NR or Dolby NR encoded tape collection to CD, Hard-drive or MP3. Built very well! Looks like new, works and sounds great. Comes with an 'e-copy' / pdf of the Nakamichi 481 owners manual and original Nakamichi 481 Brochure. Measures 17.75" wide x 11.5" deep x 5.5" tall and weighs 16 lbs unpacked. Includes our standard 90 day limited warranty. 
NAKAMICHI 481
Cond. 8.5+
SOLD 7/25/2022
SHIPPING TO ALEX IN ONTARIO CANADA

(tape shown in photos not included. We do ship our decks with a  a 'pre-recorded' tape for playback, made on this 'specific' deck, and a tape to 'practice record' on.) 

(Above text, in it's entirety, property of www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright Information' page for details)

 

    



              NEW LISTING 4/16/2022
 (Click on above thumbnails to enlarge photos)
warranty
VINTAGE, REFURBISHED, FULLY SERVICED
TECHNICS CASSETTE TAPE DECK
TECHNICS RS-B78R
GEAR DRIVEN HUBS!!!!!!!!!
AUTO-REVERSE
With DOLBY B, C & dbx NR
#...C082
Circa early 1984-86
Made in Japan
"*WORLD AC POWER" ™
 for sale

Initial 'pre-test' conditions; Fast Wind typically sluggish / intermittent (almost always due to idler tire issues). Play and Record actually seem to have basic function and perform decently, but did exhibit some flutter. Crack in Level meter plexi window (we sat on this deck for about 6 years, before starting on it, waiting to come across another to pull the window from and it never happened. I sold model deck when new, and due to it's relatively higher price, not many were sold, so not many are out there on the secondary market for parts. Thus finally, we decided to go ahead and restore it with the window crack as it's such an amazing deck both considering features and performance.
Addendum; following initial restoration, we found that when monitoring playback for hours, that occasionally the speed would slow down for a few moments randomly throughout the day. We had a Technics RS-68R that had just come in that had head issues, so we pulled the transports and swapped them, and discovered that the issue followed the transport (yes, we checked the power supply, monitoring it when the motor slowed, but observed no variation in the power supply Voltage or current). We then pulled the motor and determined that it had too much drag at certain points through it's rotation. We swapped the motor and that finally solved the speed issue.

ü Our technician has completely and EXTENSIVELY gone through and 'Certified' this unit which involves complete disassembly of the transport (not an easy task on this table), cleaning inside and out, DISASSEMBLING, cleaning and re-lubricating all internal mechanisms and the balance of efforts listed below.



Both capstan flywheels removed.



 Capstan's cleaned, burnished and re-lubed prior to re-install (also had their belt surfaces cleaned and burnished as mentioned further on. Both rubber pinch rollers removed from arms and have been resurfaced on drill press and chemically reconditioned.



 During that process, we discovered that both pinch roller arms had cracks in their axle mounts.


 While those may have been fine left alone, we went a head and changed them out from the other transport which had 'crack free' arms.
Heads have been cleaned and de-magnetized as well as the entire transport. Power supply tested for correct Voltage and current to the motor. While the motor issues likely caused some of the flutter issue, we also found a random build-up of rubber debris on the drive pulley and the capstan flywheels, that would contribute to that as well.



Main capstan / flywheel belt replaced with modified #FR10.0. New counter belt installed. Following initial rerfurb, Main / Cap motor replaced with another original / OEM motor due to faulty bearings in one originally installed. All internal pots, switches and controls cleaned and tested for noise-free function. Floor noise tested to -74dB. All fluorescent displays and LED's working fine. Both spindles in perfect alignment. FF, REW, & Play transport functions all test perfectly and controls positively responsive. Eject door mechanism operates smoothly. Heads in good shape as well, with many years of performance left in them.

ü Speed adjusted to 99.70% accuracy with 1kHz factory calibration tape (meaning 1kHz calibration tape plays back at 1003Hz +/- 1Hz {the service manual spec states +/- 15Hz is acceptible BTW}) 

ü Head alignment and azimuth at 125Hz, 1kHz and factory 10kHz, Sony alignment tape and O-scope for peak performance (this adjustment alone gained ~6-9dB output amplitude!) for BOTH directions for 'peak performance' with Oscilloscope also w/ STL and TEAC MTT-257H calibration / alignment tapes. Both channels now even output.

ü Both Internal playback amplifier channels adjusted with Volt meter, O-Scope and w/ STL and TEAC MTT-257H calibration / alignment tapes. Both channels now even output.



ü Meters adjusted to even zero with symmetric input with Volt meter, O-Scope and w/ STL and TEAC MTT-257H calibration / alignment tapes. Both channels now even output.

ü Both Internal Record amplifier channels adjusted with Volt meter, O-Scope and sine-wave generators and 'pink / white noise sources'. Both channels now even output. Azimuth verified for BOTH directions and remained consistent. Playback meters zero with factory test tone tape.

ü  Plays perfectly and after adjustment, records AMAZINGLY well with 1kHz @ 0 dB = 0dB! on High bias type tapes. (Following the extensive restoration, we did 'test recordings' of a 'ddd' CD on Maxell 'XL-II' High Bias with the following results;
w/ no NR; 1kHz @ 0dB; L=0dB & R=0dB
w/ Dolby B; 1kHz @ 0dB; L=0dB & R=0dB
w/ Dolby C; 1kHz @ 0dB; L=0dB & R=0dB
w/ dbx; 1kHz @ 0dB; L=+2dB & R=0dB
DDD Pre-Recorded CD material sounded fabulous on Maxell UDXL-II and dbx engaged.
(we really put them through the paces, testing both with well mixed, recently recorded CD material and CD recorded / factory test tones looking for correct head Azimuth and speed accuracy). Following all of the above, deck now performs VERY WELL!
    ____________________________
    
The Technics RS-B78R with Auto-Reverse, Dolby B / C & dbx NR. Great deck for "all around use" home or project studio. And since it utilizes DBX NR, it can squeeze up to 110 dB of dynamic range onto a cassette tape (normally the best recorders might do up to 72 dB with Dolby engaged. Another great feature of this model is that the fast wind mechanism is completely gear driven and does not us a rubber tire. Deteriorated / glazed rubber fast wind idler tires are THE COMMON issue with decks not fast forwarding, rewinding and / or eating tapes. That will never be an issue on this particular model and many Technics decks w/ 'gear driven' reel spindles.

Technics RS-B78R Features include:
    
- IC Logic "touch-control" transport
- Full "Auto-Stop" or Dual Mode Auto-Reverse
- 100% Gear Driven Reel Spindles



- Dual, Asymmetrical Flywheels and capstans
- dbx noise reduction built-in for recording and playback for playing back all those dbx encoded tapes you have 
- dbx Disc Decoder (for any dbx encoded vinyl you might have)
- Dolby B & C NR built-in as well as the dbx
- 3 Motors
- Auto Tape Type selector for Normal, CrO2 & Metal
- Super hard, "Amorphous" Head
- Auto Record Mute for 5 second song spacing
- "Cue & Review" function for fast winding tape while temporarily listening (very handy). Also doubles as "Music Select" feature (song search)
- Direct Access song skip feature for up to 12 selections
- "Blank Skip" feature
- Dual function, digital tape counter
- Dual Fluorescent VU signal level meters with Peak Hold
- Manual Record Level and Balance controls
- Variable Output level control
- Front mounted Stereo Headphone jack
- Dual, rear mounted, 1/4" mic jacks
- Timer Play / Record function.
- *Semi "WORLD AC POWER"™ allows unit to be operated on 50 or 60 Hz AC (would require a transformer to operated on European / Asian AC volts). Currently set up for US / North American AC power.
   
Technics RS-B78R Specs:
   
Track format: 4 track / 2 channel
Capstan Drive: Dual, asymmetrical flywheel / capstan, closed loop
Heads: 1x AX head for Rec/PB and 2x Double-gap, Ferrite head for erasure
   Motors: 3
Freq Response: w/ Metal tape; 20-20,000 Hz -20dB (30-18,000 Hz +/- 3dB @ -20dB)
w/ CrO2 tape; 20-19,000 Hz -20dB (40-17,000 Hz +/- 3dB @ -20dB)
w/ Normal / LN tape; 20-18,000 Hz -20dB (40-16,000 Hz +/- 3dB @ -20dB)
Wow & Flutter (WRMS): 0.45%
S/N ratio: 92db DBX on (A weighted)
74dB Dolby C NR (CCIR)
66dB Dolby B NR (CCIR)
56dB No NR (A weighted)
Dynamic Range: 110db @ 1kHz DBX on (A weighted)
Bias Frequency: 80kHz
Line Input: 60mV & 47K Ohms
Line Output: 700mV & 0.8k Ohms
Headphones Output: 125mV @ 8 Ohms
Fast Wind Time: C-60 tape ~90 secs
   
    Again, we have completely cleaned, EXTENSIVELY prepped and tested this deck with an investment of approx 9 hours of tech time. Great for project studio or home use especially since it has dbx NR. Great for simply 'listening' as it has 'auto-reverse'. Also great for transferring your tape collection to CD, Hard-drive or MP3. Obviously it's main 'black-eye' is the crack in the meter window (again, we searched for probably 6 years for a replacement that was economically practical to no avail). Works and sounds great! Performs probably better than when new (I know that at least the speed is adjusted more accurately evidenced by the adjustments and test results mentioned above). Measures 17" wide x 11" deep x 4" tall and weighs 11 lbs unpacked. Comes with our 90 day limited warranty.
TECHNICS RS-B78R
    Cond. 8 (due to to the display window crack. Rest of the deck looks near NEW @ cond. 8.5+++)
$659.

(tape shown in photos not included. We do ship our decks with a  a 'pre-recorded' tape for playback, made on this 'specific' deck, and a tape to 'practice record' on.) 

(Above text, in it's entirety, property of www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright Information' page for details)

 

- NOTES ON PURCHASING A VINTAGE CASSETTE DECK -

I own and have owned ‘hundreds’ of cassette decks. I started selling them ‘new’ in the early 1980’s.
Very few of the decks that we have on our ‘incoming’ shelves will function to any degree of ‘practical usability’, if at all, in their ‘as found’ condition. So it amazes me at all the articles out there on “How to Buy a Used / Vintage Cassette Deck”, and no one seems to mention how the ‘clock needs to be rolled back’ 30-40 years on one to get to a level of ‘practical usefulness’. They all want to mention to make sure it’s got the right ‘features’ for what you need,  that it’s in “good condition” (typically referring to its often purported, “minty” looks),  that the shipping is “reasonable”,  the methods of payment work for you,  and that the ‘sellers feedback rating’ is adequate….
WHAT ABOUT IT’S INTERNAL CONDITION????? IT’S GOT 20-40 YEARS UNDER THE HOOD!!!
      There’s lots of ‘rubber’ and ‘lubricated parts’ inside a cassette deck. ‘Time’ is NOT a friend to either. Rubber can do a few things. It can crack, stretch, break, glaze over (think about how a ‘pencil eraser’ gets after about a year in a drawer), or turn back to its original form, which is a ‘gooey / tar’ substance. Oil and grease ‘gel up’ and stop being lubes, and start becoming ‘glues’ (think the grease caked under an old / vintage car / tractor. It has to be ‘chipped’ away with a putty knife).  Both of those aspects and others affect a tape deck’s (or turntable, or VCR or camcorder, or CD / DVD player, or film projector, or just about anything that is powered by electricity and has moving parts (AND THERE’S A LOT OF MOVING PARTS IN A CASSETTE DECK) performance. Most folks assume that if you simply 'change the belt(s), then the deck is 'good to go'. "Not even close". Most cassette decks also utilize an 'idler tire' to drive the tape reels, not only for 'Fast Wind' functions, but also for 'Take-up' reel function. This tire becomes 'glazed', cracked, deformed and / or disintegrated, and a deck WILL NOT function correctly with 'tire' issues. The 'kicker' is that the 'idler tire' is almost always 'buried' deep within the transport mechanism which typically requires a near complete disassembly of the entire tape transport to even asses if a replacement tire can be found, an available one modified, or if one can be fabricated.
Thus following is a list of questions to ask about any tape deck…

          How is its overall ‘Speed’? Inaccurate speed is one of the first ‘tell-tale’ sign of a decks overall heath. You won’t likely be able to tell without an accurate ‘speed / test tone / calibration’ tape and a frequency counter. If you’re not a musician, not ‘musically inclined’, or are ‘tone deaf’ maybe you won’t notice, but most folks will notice ‘something is not quite right’ when listening to a slow (or occasionally fast) running tape. Just throwing on a new belt, doesn’t address speed accuracy. Most mechanisms will need to be disassembled, cleaned and re-lubed before any speed adjustments can be attempted.

          How ‘Steady’ is the speed? This refers to ‘WOW & Flutter’. This generally won’t be noticed until you put on a tape with a ‘steady tone’ or a musical piece with sustained piano notes. Then ‘Flutter’ issues will drive you nuts. Also can be noticed with sustained string instruments. Just wait till there’s violin with vibrato, then added on top is ‘out of time’ vibrato caused from excessive ‘Flutter’ of the tape transport. If someone just throws any selection of music in, or a 'spoken word' tape, they'll likely not notice the 'Flutter' issue.  ‘WOW’ is less of an issue in cassette decks, but can occasionally be caused by ill-fitting / wrong belts being installed.

          Does the deck ‘fast wind’ at ANY AND ALL positions on the tape, and will fast wind, BOTH WAYS throughout an entire tape,...repeatedly...Every time? While playing does the ‘take up’ pulley / reel run correctly, or is it ‘jerky’. Is ‘fast wind’ (in either or both directions) smooth, or jerky. It will typically be jerky and intermittent if it functions at all. If it doesn't turn correctly / sufficiently in 'Playback' mode, that will cause the deck to 'eat tapes'!
This is caused by a ‘glazed’ / cracked ‘idler tire’, and about 99.999999% of decks are going to have a glazed or cracked or otherwise deteriorated idler tire’. It's 'decades' old rubber.  It almost HAS to be compromised.  You usually can't 'dodge physics'.  AND those things are not easy to address. The idler tire will almost always be ‘buried’ a few layer inside the transport. Then once you get there you go on the hunt for a replacement, only to find that there were dozens or hundreds of rubber, idler tires made, only a few of which are still available, and none of which will fit correctly. So now you have to make the choice (at least of you want to move forward with a decks restoration) as to whether you substitute an ‘O-ring’ (often works as a sub) or you take a tire that is close to fitting, and modify it to function correctly.

     How is the condition of the heads, regarding 'head wear'? It takes and 'experienced eye' to 'visually' estimate the condition of tape heads. Excessively worn heads, will never sound the way they should, with any amount of adjustment, and you can't just go into your local 7-11 and pick up a new set. Replacement heads for a specific deck, will likely need to come from another of the same (or darn close) specific deck. Having the heads 'lapped' was once a sometimes viable possibility, but that is, for the most part, a 'long, lost art'.  Even if you manage to acquire replacement heads, they have to be installed correctly. That will require alignment tapes and test gear (O-scope and / or milli-Volt meters) and a lot of patience.

     If the deck is ‘auto-reverse’, how’s the condition of the gear in the mechanism that ‘spins the head’? They are commonly, slightly ‘cracked’. There is note a practical fix for that. The head will go part way and ‘lock up’. If you can get it to go ‘back’ to its original position, just leave it, and accept that the deck is not ‘auto-reverse’.

     When the tape gets to the end of it's travel in play and fast wind modes, does the decks 'auto-stop' mechanism work? Every time?

     Does the tape counter work, and spin smoothly throughout the entire length of the tape? Every time?

        How’s the ‘azimuth’. Yes, I know it’s not a word that you use every day, but it’s vitally important on a tape deck. When the azimuth is out of alignment, a tape will sound ‘muffled’ (loss of treble) and / or ‘out of phase’ (not much bass). While you can use a ‘pre-recorded’ tape and get it close, it’s really only adjusted correctly and COMPLETELY by utilizing a ‘calibrated alignment’ tape and an O’Scope or at least a ‘milli-Volt’ meter.

          How many ‘dB’ down does the deck playback from its recording level? If you record a signal at “0dB”, how far does playback deviate from that? You should usually expect 3-6dB if the deck is in ‘reasonable’ condition. If it’s down 10 or 12dB (or more) you’re not likely going to be very happy with its recording quality. Unless it’s simply due to dirty heads, addressing this is fairly complicated for all but the technically qualified.

           Is playback even out of both channels and via both meters? You can’t just put on your favorite tape of ‘Death-Polka Favorites’ (or some other 'recorded program material' and listen to it to make an accurate determination. You would need a calibrated test tape (with 'constant' test tones), and an O’scope, or at least a millivolt meter to first make sure the playback head is in alignment, then the internal playback amplifiers are producing an ‘even amplitude’ and then that the meters are both ‘mechanically’ adjusted correctly and that their ‘voltage feed’ is evenly adjusted. Don’t know what any of that means? Then I wouldn’t be ‘messing with it’.

Do you hear any 'crinkling / scrunching' noises with your ear right up next to the transport, and / or when you pull out a tape that has been played on it, is there evidence of 'crinkling / wrinkles / creasing' on the tape section that just went past the pinch roller?

          Is there a loud, obnoxious ‘motor boating’ sound that and or your meter(s) are cyclically ‘pegging’? No. How about after the third time of putting the deck into record mode? Or the 6^th time or the 20^th time? Then the there’s a problem with the internal record switch (or it needs to be flooded / cleaned). (this issue is usually only a potential problem on a deck with a ‘mechanical internal record switch’, and not more ‘modern decks’ that use ‘electronics’ to switch the deck in and out of record)
  
    Does the deck make any extraneous noises when in play / record, such as squeaks, growls, scrapes, grinds etc? if not immediately, how about after 15 minutes, a half hour, an hour or a day? In all modes?

    Are the ‘Recording Level’ control pots ‘quiet’ or do they need to be cleaned?

    Do the “Source / Monitor” or “Tape EQ” switches quiet or do they make noise and need to be cleaned?

    If the deck has ‘Auto-Tape-Type’ sensing, is it triggering correctly? If not, that could mean an issue with the mechanism trigger tab, or a dirty / compromised micro switch.

    If the deck is equipped with any type of noise reduction ie; Dolby B, C, dbx etc, is if functioning properly? We don’t see issues with that often, but it does happen.

       Is the deck quiet when playing back a ‘blank tape’ or better yet, a cassette ‘shell’ with no tape in it? (some decks will not allow this test easily, as it’s ‘auto-stop’ mechanism is triggered by the tape counter, which is typically tied to the ‘supply’ reel and if that reel is not moving then the deck will go into ‘auto-stop’ mode.) This is ‘floor noise’ and is not to be confused simply with ‘tape hiss’, which is why we want to hear the transport moving without tape passing the playback head.

     How is the 'quality' of the recording and playback? Bad, distorted recordings can also be due to Bias issues (besides the above mentioned "worn heads", azimuth alignment errors and dirty controls and switches.

    Are all of the indicators and lights working? These aren’t typically ‘functional deal breakers’, but can definitely increase or decrease ‘curb appeal’.

If 'analog', do the meters settle at their left most index line? Do they both respond quickly? Do they 'stick' at any point in their travel? If 'really pegged' do the get stuck at the top?

    Does the ‘well door’ close and latch, EVERY TIME and correctly, REPEATEDLY?

Those would be most of the ‘high points’ regarding the functionality of a tape deck.   Once you, or someone technically qualified has addressed AT LEAST ALL of the above, then we can talk about how ‘minty-fresh’ it’s cosmetics are.

      I get the question of, “what’s the best brand / model” of tape deck out there. Well, 25-50 years ago, when you could go to a few ‘real audio shops’ and take your pick of a dozen or two NEW tape decks, that question held much validity. Now my opinion of the "which is the best deck", is the “one that has been properly refurbished / restored / fully service to a level of ‘proper utility’, recently, by someone qualified to do so”.

A QUESTION:
    Most folks know the difference, without too much thought, between a Chevrolet ‘Corvette’ and a Chevrolet ‘Chevette’. If I ask "which is a better car, a ‘Corvette’ or a ‘Chevette’", most folks will answer "the Corvette” (barring all the arguments based on other personal opinions)…Now, I’ll give you the rest of the story. The Corvette has been sitting in a barn for the past 25 years, and hasn’t been started since it was parked there originally. Or it was in a flood. Or it’s had a dog living it, or a rat has built a home in the dashboard, or the engine was blown by the 'now deceased owner’s son', or, or, or…
     Now the Chevette has just been thru a qualified auto repair shop, and had the engine compression checked (and was within spec), new plugs / wires / dist cap, timing adjusted, new starter, alternator checked for charging, new battery, the coolant flushed, the clutch replaced, the brake system flushed, new calipers, drums and shoes, new belts, carb rebuilt and properly jetted, vacuum lines checked for leaks and replaced, air conditioner serviced, new seat covers, new tires, new wiper blades, windshield cleaner system replaced, cracked windshield replaced, all lights tested / replaced, horn checked, wiper motor / mechanism checked / lubed, and thoroughly test driven around town, starting and stopping, on the highway at all speeds. It was started in the cold weather, and once warm, started again. Repeatedly. It is pretty much doing what it did when new.  And you need to take a trip across the country tomorrow.  Now I ask again,  "which is the better car?"

UPDATED LIST 7/1/2022
Cassette Tape Decks Coming Soon
(or at least as the units cooperate and time allows):

Nakamichi LX-5 (Awaiting spot on tech bench)
Nakamichi ZX-7 (In process on bench)
TEAC V-909RX (Tech has finished, awaiting final inspection / testing / sign-off / photos / text)
Technics RS-B68R (Didn't make it through. Becoming a parts unit)
Sony TC-D5M (Tech has finished, awaiting final inspection / testing / sign-off / photos / text)


(While we have a few dozen more decks in stock (by Akai, Denon, Marantz, Nakamichi, Onkyo, Pioneer, Sansui, Sharp, Sony, TEAC, Yamaha etc), awaiting bench / tech time, but MANY WON'T MAKE IT thru our stringent process)
 

 

Click here to see what we do to our cassette decks to make sure you get a
"usable" deck that should be good for years of trouble free service.

 

    

    

          NEW LISTING 2/26/2020
EXTENSIVE REFURBISH / SERVICE***
VINTAGE MARANTZ CASSETTE TAPE DECK
MARANTZ SD-3510
THE ONE WITH THE "DRAWER TRANSPORT"
SO IT'S LOW PROFILE
GOLD / CHAMPAIGN FINISH
CIRCA 1981-84
MIJ
"WORLD AC POWER" ™
for sale

ü Our technician has completely and EXTENSIVELY gone through and 'Certified' this unit which involves total disassembly of the transport, cleaning inside and out, COMPLETELY DISASSEMBLING, cleaning and re-lubricating all internal mechanisms and the balance of efforts listed below (incredibly difficult on this deck!!!).



ü Heads inspected for excessive wear (obviously we do this 'early on' as 'excessive' wear will usually negate any further restoration work).

ü Main Capstan / Flywheel belts replaced w/ #42-450 & #42-980.

ü Counter belts replaced w/ #42-260 & #42-1060.

ü Rubber pinch roller mechanism bushings & axles cleaned of old lube, reconditioned and re-lubed.

ü Capstans motor had it's bronze bushings lubed w/ 30wt

ü Capstans cleaned / burnished

ü All internal trim pots, switches and controls cleaned and tested for noise-free function.

ü All meter lamps and LED indicators working fine.

ü Both hub spindles in perfect alignment.

ü "FF, REW, & Play transport functions all test and controls tested for 'positive / accurate' responsive" is what we normally like to say, but due to the internal design of this one, we were not able to get it to perform 100%, EVERY time. Occasionally the 'STOP' button will have to be pressed a time or two, or another button will need to be pressed to then be able to engage 'STOP'. Other buttons sometimes 'hang up' temporarily, but usually selecting another transport function will 're-set' them as they're 'self cancelling / mechanical' with an internal mechanism that was unusually difficult to service and get to the current 'usable' state.

ü Heads in great shape as well, with many years of performance left in them

ü Heads have been cleaned and de-magnetized as well as the entire transport.

ü Head alignment and azimuth at 125Hz, 1kHz and 10kHz adjusted for BOTH directions for 'peak performance' with O-Scope and w/ STL and TEAC MTT-257H calibration / alignment tapes. Both channels now even output for PLAYBACK..

ü Both Internal playback amplifier channels adjusted with Volt meter, O-Scope and w/ STL and TEAC MTT-257H calibration / alignment tapes. Both channels now even output for PLAYBACK..

ü Meters adjusted to even zero with symmetric input with Volt meter, O-Scope and w/ STL and TEAC MTT-257H calibration / alignment tapes. Both channels now even output for PLAYBACK.

ü Both Internal Record amplifier channels adjusted with Volt meter, O-Scope and sine-wave generators and 'pink / white noise sources', however we were not able to get great recordings. The left channel is often 'low / and distorted' on 'Recording' (sounds fine as a 'PLAYBACK' deck).

ü Pinch roller and heads all in GREAT condition!!!

ü Speed adjusted to 100% accuracy BOTH directions, with with TEAC MTT-257H 1kHz factory calibration tape (meaning 1kHz calibration tape plays back at 1000Hz +/- 1 Hz)

ü Pinch roller re-surfaced, and in GREAT condition!!!

ü Tape Counter works well

ü Speed adjusted internally to 100% accuracy with 1kHz factory test tape (meaning 1kHz calibration tape plays back at 1000Hz +/- 1Hz) (utilized TEAC MTT-257H)

ü Floor noise measured at -60dBm

So again, this deck was ultimately passed as a 'Playback' deck.

Total technician time to restore ~22++ HOURS! (YES, OUCH!)
  ____________________________
  
This deck is the commensurate deck for other Marantz components such as the Marantz Escotec SC-7, SC-8, SC-9, SC-500 SC-2000 Pre-Amps, the SM-8, SM-500DC, SM-2000 Power Amps, EQ-20 Graphic Equalizer, PM-8, PM-450 or PM-730 Integrated amps, ST-500 Tuner and many others. I sold all of those components when they were new for a Marantz dealer. If you're building that system (or already have most of that system) and need the matching cassette deck (for Playback), then here you go. This one is probably as good as it's going to get, as I don't know of any tech's who would be willing to bring one any further to completion

Marantz SD-3510 Features include:
  
- Retractable, Drawer Tape transport
- Adjustable Fine Bias Control for Recording***
- 'Soft Touch', mechanical transport
- Dolby-B noise reduction built-in for recording*** and playback
- Beautiful, Back-Lit VU signal level Indicators
- Manual Record Level with Separate L&R control
- Record 'Mute' function
- Front mounted, 1/4" Stereo Headphone jack
- Dual, Front mounted, 1/4" Microphone jacks
- 4-Position, Tape Type Selector for Normal, CrO2, Ferro-Chrome & Metal tape
- Tape Counter
  - True “WORLD AC POWER"™
   as it will work on both 50 or 60 Hz AC and voltages from 110-240 Volts AC
*** again, at this point a moot point as its best for Playback purposes

Marantz SD-3510 Specifications:

Style: Slim / Top Load
Track format: 4 track / 2 channel
Motor: DC Servo
Heads: Super-Hard, Alloy Play / Record head & Double-Gap, Ferrite Erase head
Freq Response w/ Dolby OFF: w/ Metal; 30-17,500 Hz +/- 3dB
w/ Chrome / CrO2; 30-16,000 Hz +/- 3dB @
w/ 'Normal'; 35-15,000 Hz +/- 3dB
Wow & Flutter (WRMS): 0.10% WRMS
S/N:
>65dB w/ Dolby B
>56dB w/ Dolby Off
Line Input Sensitivity: 50mV +/- 3dB
Output Level / Impedance for 'Normal' levels: 500mV +/- 3dB & 8.5k Ohms
Headphone Output Level / Impedance for 'Normal' levels: 50mV +/- 3dB & 60 Ohms
Fast Wind time (C-60): 90 sec.

Again, we have service and thoroughly tested this deck and offering it for 'PLAYBACK' purposes.
Cosmetically, it's in decent condition with a scratch on the right side of the face & some scuffs on the top of the face panel (see photos above).
Great deck for just about any system. Also great for transferring your tape collection to CD, Hard-drive or MP3 for just playing your tapes. Includes an 'e-copy / pdf download' of the Marantz SD-3510 owners manual.
Measures 17.3" wide x 12" deep x 4.5" tall and weighs a ~12 lbs unpacked.
REFURBISHED / SERVICED for PLAYBACK MARANTZ SD-3510
Cond. 8
$299. as-is for Playback only
with one of our mini, GOLD R2R tapes shown in the photos included

(tape shown in photos not included. We do ship our decks with a  a 'pre-recorded' tape for playback, made on this 'specific' deck, and a tape to 'practice record' on.) 

(Above text, in it's entirety, property of www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright Information' page for details)

 

    

           NEW LISTING 2/26/2020
VINTAGE PIONEER CT-F750 CASSETTE TAPE DECK
AUTO-REVERSE
CIRCA 1979
MIJ
RESTORATION PROJECT / REFURB CANDIDATE / AS-IS
for sale

Fixer-Upper Pioneer CT-F750 stereo cassette tape deck / player / recorder.
Another one we are clearing out in 'as-found' condition. We just simply aren't going to have time to restore them all so it's for sale 'as-is'.
What we know:
- Powers-Up
- Motor Runs
- Has some Fast Forward and Re-Wind function
- Both capstans turn
- Pinch roller did not engage so no Play function observed (likely varnished lubes impeding movement)
- All LED's, cassette well illumination, Direction indicators, Reverse mode indicators and Blue-Fluorescent meters / display work
- Pinch rollers appear serviceable
- Heads appear to be in great condition (at least cosmetically)
- Clean cosmetics (may be dusty / dirty etc.)
-

Pioneer CT-F750 Features:
- Auto-Reverse
- Variable Output Level control (one of the most important features on a deck in our opinion. Allows you to match volume level of other sources, allows adjustment for 'best' pre-amp input to avoid distortion, allows you to change the volume of the deck if you have it located remotely from the pre-amp / receiver as I do, and many other applications)
- Dolby
- Piano Key operation
- Blue Fluorescent Meters with 'Peak' or 'Avg'
- Tape Type Selection
- Record Mute
 

Missing Power toggle cap
Great restoration projects if you have the skill sets or are versed in restoring Pioneer CT-F tape transports.
$189. As-Is, entire Unit*
 

~$789. If Restored to our normal level depending on record quality and tech time (theoretical only, as we're not restoring it due to current tech time resource constraints).

 

 

         

          NEW LISTING 4/1/2022
 (Click on above thumbnails to enlarge photos)
warranty
VINTAGE, REFURBISHED, FULLY SERVICED
NAKAMICHI CASSETTE TAPE DECK
NAKAMICHI 600 PEWTER / SILVER
#...6510
With DOLBY B NR
THREE MOTORS, 'USER ADJUSTABLE' BIAS AND REC CALIBRATION
MADE IN JAPAN!
Circa early 1975-78
"WORLD AC POWER" ™
SOLD 6/3/2022
SHIPPING TO VLAD IN NEW YORK

Initial 'pre-test' conditions; Fast Wind typically sluggish / intermittent. Auto-Stop intermittent. Noisy controls esp when recording. 'Play' cap loose / gone. 2x pads missing. 'Sticky' buttons / controls.

ü Our technician has completely and EXTENSIVELY gone through and 'Certified' this unit which involves complete disassembly of the transport, DISASSEMBLING, removing old / stiff lubes, cleaning inside and out, cleaning and re-lubricating all internal mechanisms and the balance of efforts listed below.

ü Both reel turntable 'drive' tires resurfaced / re-conditioned for trouble-free service.

ü Capstan Drive belt replaced with NEW for trouble-free service.

ü Essentially 'lifetime' Counter belt cleaned and re-conditioned.

ü Rubber pinch roller has been resurfaced and reconditioned

ü Flywheel removed and Capstan burnished. Bushings cleaned and lubed.

ü Heads have been cleaned and de-magnetized as well as the entire transport.

ü All internal pots, switches and controls cleaned and tested for noise-free function.

ü Push button switches cleaned and not binding / sticking

ü Circuit board connectors, removed, burnished / cleaned.

ü Both spindles in perfect alignment.

ü All motors had bushings lubricated

ü FF, REW, & Play transport functions all test perfectly and controls tested for 'positive / accurate' responsive.

ü Eject operates properly.

ü Tape Counter Function tested

ü Dolby NR circuit tested

ü 'Memory / Zero Return' function tested

ü Heads are in great condition, with virtually no visible wear!

ü Pinch roller and heads all in GREAT condition!!!

ü All adjustment pot cover plugs intact.

ü Both level meters playback even.

ü Head alignment and azimuth at 125Hz, 1kHz and 10kHz adjusted for BOTH directions for 'peak performance' with Oscilloscope and w/ STL and TEAC MTT-257H calibration / alignment tapes. Both channels now even output.

ü Both Internal playback amplifier channels adjusted with Volt meter, O-Scope and w/ STL and TEAC MTT-257H calibration / alignment tapes. Both channels now even output.

ü Meters adjusted to even zero with symmetric input with Volt meter, O-Scope and w/ STL and TEAC MTT-257H calibration / alignment tapes. Both channels now even output.

ü Both Internal Record amplifier channels adjusted with Volt meter, O-Scope and sine-wave generators and 'pink / white noise sources'. Both channels now even output.

ü Pinch roller and heads all in GREAT condition!!!

ü Speed adjusted to 100% accuracy BOTH directions, with with TEAC MTT-257H 1kHz factory calibration tape (meaning 1kHz calibration tape plays back at 1000Hz +/- 1 Hz.)

ü 4 replacement feet / pads installed

ü Following initial mechanical restoration, we found that the 'fast wind' functions were still slow and intermittent. It was discovered that the reel tables on this deck utilize clutches sandwiched between their front and rear halves with adjustable tension. We removed the originals clutch pads, fabricated new ones, installed and re-adjusted the tension springs so now those functions perform properly (this operation took over 5 hours so resolve).

ü Cosmetics are in essentially NEW condition. Deck works, sounds and looks great! 

ü Plays perfectly and after adjustment, records AMAZINGLY well with 1kHz @ 0 dB = 0dB! on High bias type tapes. (Following the extensive restoration, we did 'test recordings' of a 'ddd' CD on Maxell 'XL-II' High Bias with the following results;
1kHz @ 0dB; L=0dB & R=0dB
PN @ 0dB; L=-1dB & R=-1dB
WN @ 0dB;  L=-4dB & R=-4dB
DDD Pre-Recorded CD material @ 0dB;  L=0 to -1dB & R=0 to -1dB
Bottom line is, it recorded amazingly well!
 Total technician time to restore ~14 HOURS!
  ____________________________

The Nakamichi 600 Stereo Cassette Tape Deck. Great deck for doing your tape transfers if your tapes were recorded with no NR or with Dolby B. It's just 'fun' to operate and gorgeous to look at. Nice, big, illuminated VU meters look great when playing. Again, as stated above, records AMAZINGLY well!

Nakamichi 600 Features include:
  
- 3 Motors (Capstan, Reel and 'Cam')
- User Adjustable Bias controls (under plugs on front panel)
- User Adjustable Record Calibration w/ built-in 400Hz function generator. (under plugs on front panel)
- Super Hard, High-Performance, ''Focused Field Crystal Permalloy Head' R/P head w/ EXTREMELY NARROW gap, allowing for 20-18,000Hz performance
- Piano-Key tape transport with motor driven 'cam control mechanism'
- Selector for Normal (EX / I) & CrO2 / Metal (SX / II) Tape Types
- Tape Type EQ selector for 120 or 70 μsec tape
- Analog "VU" signal level meters w/ 47dB of range
- Analog tape counter
- MPX filter (for filtering the 19kHz pilot tone out of FM transmissions)
- Dolby B NR
- Variable Output Level (one of our favorite features on a tape deck)
- Record level control with L & R balance
- Memory Stop / Repeat for counter
- RCA and DIN I/O's on rear panel
- "WORLD AC POWER"™ allows unit to be operated on 50 or 60 Hz AC and 100-240V. Currently set up for US / North American AC power.

Nakamichi 600 Specifications:
 
Track format: 4 track / 2 channel
Motors: 3
Freq Response; 40-18,000Hz +/- 3db w/ SX or EX Tapes @ -20dB
Wow & Flutter (WRMS): <0.12% WTD Peak
Tape Speed: 1-7/8 ips
Harmonic Distortion:  <1.5% @ 400Hz & 0dB
S/N ratio w/ CrO2 tape: >60dB @400Hz w/o Dolby. >68dB @400Hz w/o Dolby.w/ Dolby engaged and High Bias Tapes)
Bias Frequency: 105KHz
Erasure: >60dB below saturation level @ 1kHz
Separation: >35dB @ 1kHz, 0dB
Crosstalk: >60dB @ 1kHz, 0dB
Line Input: 60mV & 50K Ohms
Line Output: 580mV
  
Again, following the above stated bench work / testing, our technician has 'Certified' this deck and it is an great performer sonically and mechanically. It's been fully serviced / completely gone through cleaning, lubing, adjusting, demagnetizing and testing.

This is one of the most 'fun' and aesthetically pleasing decks I have ever crossed paths with (and I've had, owned and sold the best cassette decks ever made including Tascams 122mk III's, Nak Dragons, Nak CR-7's, Yamaha's, Denons, Onkyo's, Pioneer CT-F1250's and CT-F1000, and a few hundred more.)
Great for transferring your no NR or Dolby NR encoded tape collection to CD, Hard-drive or MP3. Built very well! Looks like new, works and sounds great. Comes with an 'e-copy' / pdf of the Nakamichi 600 owners manual and Nakamichi 600 Brochure. Measures 15.75" wide x 9.5" deep x 6.75" tall and weighs 15 lbs unpacked. Includes our standard 90 day limited warranty. 
NAKAMICHI 600 PEWTER
Cond. 8.5+++
SOLD 6/3/2022
SHIPPING TO VLAD IN NEW YORK

(tape shown in photos not included. We do ship our decks with a  a 'pre-recorded' tape for playback, made on this 'specific' deck, and a tape to 'practice record' on.) 

(Above text, in it's entirety, property of www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright Information' page for details)

 

 

 

     *Ok, so here's the deal on our 'As-Is' / 'As-Found' / 'For Restoration' units. The prices are firm and are more based from their 'pre-processed parts value'.  We are offering these “As-Is” units simply because they’re below our threshold of time-vs-effort-ROI at the time of posting. Any less than our published price and we'll go ahead and process them as "parts" and remove from sale or re-slate for future restoration by us as time allows.  At these values / prices, no more photos or testing will be done by us.

     Most or all of the following applies to us as well, EVERYTIME we start the refurb / service process on a unit. While we may sometimes (usually) state what functions / condition we observed at the time of testing, it is in no way a declaration of warranty (meaning; “we may have missed some $%#*”).  The existing condition we observed and documented is also no guarantee of ultimate viability following further service efforts.  It is only offered 'As-Is', without our normal *warranty and we won't have the time resources to 'improve' it in anyway.  The existing condition we observed and documented is also not necessarily indicative of the entire cosmetic / operational condition associated with a unit (there’s probably issues we didn’t or couldn’t see at the time).

     Restoring / refurbishing 'vintage / used' units properly is typically not an 'easy' process and if you are 'not' a technician or will be disappointed if a unit does not come all the way through to fruition, then you should probably purchase a unit that has already been restored to 'working' condition.  If you are not a technician and do not understand the potential dangers of working with electronic / electrical units, then DO NOT ATTEMPT repair / restoration / further service or even open a unit up. The voltages inside these unit can kill you and it will hurt the entire time you are dying!!!  Units should probably not be ‘powered up’ or used until, at least, a cursory check by qualified personnel has been done.

     Parts to restore / refurbish / service or 'further improve' the unit may or may not be readily available (most parts can be sourced).  Parts / units may or may not respond positively to further repairs (you might blow something up). Units may or may not have original parts. They may have missing, damaged, modified, dangerous / outdated parts etc. (most will not). Units may have evidence of past ‘non-factory’, incorrect, uncompleted, shoddy or dangerous repairs (most will not).

     These units are NOT intended for someone looking for a 'working' unit or thinks you can simply 'install a new belt', spray in some contact cleaner or change a light bulb and have a working component.  It typically requires 4-18 hours to bring most units / vintage components back to a decent level of function and utility for the 'long haul'.

     The pack / ship will be the same as for our 'fully restored' components so the reduced price of the "As-Is" unit has NO BEARING on the cost to pack and ship (which is typically somewhere between $45-$85 but can vary up or down from that range). shipped to most of the lower 48 states. Extreme Southern, North Eastern, or North Western locales will be slightly more.

     Bottom line; If you’re not up for the challenge either due to ‘lacking skill sets’ or ‘lacking funds’ to hire the work done, and need a unit to be more than a ‘shelf display’, then I would pursue a unit / component that has already been PROPERLY restored / refurbished / service with a ‘clean bill of health’. This goes for most of the units that are for sale on on-line Auctions and Classified ads. Occasionally there will be a unit ‘up for auction’ or on a classified ad that really has been service properly, but they’re generally a ‘single digit percentage’ of what’s out there available for sale.
 

    

NEW LISTING 11/12/2021
 (Click on above thumbnails to enlarge photos) 
warranty
VINTAGE, FULLY SERVICED / REFURBISHED / RESTORED
VINTAGE AKAI AUTO-REVERSE CASSETTE TAPE DECK
AKAI GXC-730D
With 'AUTO-REVERSE' AND DOLBY NR
and REAL "VU" METERS
#...9379
Circa early 1976-79
Made in Japan
SOLD 11/15/2021
SHIPPING TO STANLEY IN NEVADA

Original issues observed (mostly the issues common with all 40 year old tape decks): "power switch not working correctly, broken eject switch lever, sluggish fast wind, noisy internal record switches, noisy level controls, PB and REC levels low and un-matched, clutches slipping way too much to be usable, L-Channel Bias way out. Pinch rollers have un-even wear. Missing one input level knob."

ü Our technician has completely and EXTENSIVELY gone through and 'Certified' this unit which involves complete disassembly of the transport (not an easy task on this table), cleaning inside and out, COMPLETELY DISASSEMBLING, cleaning and re-lubricating all internal mechanisms and the balance of efforts listed below.


ü Heads inspected for excessive wear (obviously we do this 'early on' as 'excessive' wear will usually negate any further restoration work, although as these are 'GX' heads, it would be pretty hard to put much 'wear' on them). These have virtually NO visible wear to them.

ü Internal DC power supply tested

ü Capstan motor disassembled, cleaned and re-lubed.

ü Both Flywheel belt surfaces solvent cleaned

ü Bronze Flywheel bushings solvent cleaned

ü Both Flywheel thrust pads cleaned

ü Capstan burnished

ü Reel drive tires (7 IN ALL!!!) replaced and / or reconditioned for trouble-free service. (These are actually much more important to replace on this deck (and most) than the belts. Without these, the deck won't fast wind very well, and will likely 'eat tapes' as the 'take-up' reel won't turn properly)

ü New internal Capstan Drive belt (#FRM9.2) installed for trouble-free service. (so this operation required extensive effort. The belts that came in the so called "correct kit" currently available for the Akai GXC-730D, proved to cause incorrect speed in two different decks. We were then forced to find new belts that by 'trial and error' allowed enough 'traction' and the most speed accuracy. In fact, none of the belts in the 'official kit' that is currently available for an Akai GXC-730D allowed the deck to operate at anything resembling correct speed when tested on a frequency counter with factory test tapes!)

ü New Counter belt (#.041) installed as well as 'spindle' belt #029.

ü Both hub spindles clutches were slipping and / or causing 'chatter'. Both were disassembled, shims added, compression springs adjusted, pads and plates re-surfaced, lubed where necessary and re-installed. (This was by far one of the more time consuming aspects to restoring this deck!)

ü Replaced broken Eject paddle button from another GXC-730D donor unit

ü Replaced non-repairable Power switch assembly from another GXC-730D donor unit

ü Replaced missing input level knob from another GXC-730D donor unit (some surface scratches to the replacement knob)

ü Rubber pinch rollers have been reconditioned

ü Tape well door pins re-aligned / re-worked / repaired

ü Heads have been cleaned and de-magnetized as well as the entire transport.

ü Head alignments and azimuth checked and adjusted as necessary for 'peak performance' with O-Scope. As it's an 'Auto-Reverse' deck, these adjustments are required separately FOR BOTH DIRECTIONS!

ü All internal pots, switches and controls cleaned and tested for noise-free function.

ü Head swivel for Auto-Reverse disassembled, cleaned and lubed as it was stiff to move (this was one of the more time consuming operations for this deck).

ü Both d'arsonoval VU meters static adjusted, tested and working fine.

ü Both VU meter illumination lamps replaced w/ #25-445 6.3V / 250mA.

ü Both VU Direction illumination lamps replaced w/ 4 new bulbs.

ü Both hub spindles NOW in perfect alignment.

ü FF, REW, & Play transport functions all test perfectly and controls tested for positive / accurate responsive.

ü Heads in great shape as well, with many years of performance left in them and head alignment / azimuth has been checked for peak performance.

ü Playback meters zero adjusted 'electronically' with factory test tone tape.

ü Tape Counter Function tested

ü Pinch roller and heads all in GREAT condition!!!

ü Floor noise tested to -60dBm with empty shell tape

ü Speed tested to 98% accuracy with 1kHz factory test tape (meaning 1kHz calibration tape plays back at 980 Hz +/- 1Hz)

Only issue still remaining is that "Fast Wind" will slow more than typical as it nears completion of a side. This cannot be improved anymore, and still does an adequate job.

ü Deck has had just over 23 hours of restoration work done.

Face is made of beautiful brushed aluminum, and overall the deck is in great cosmetic condition. One of the input level knobs has a few scuffs as mentioned above. Following the extensive restoration, we did 'test recordings' of a 'ddd' CD on 2 tapes; Maxell Normal Bias, TDK 'SA' High Bias, and Maxell 'XL-II' High Bias. We found that both the "Maxell's" performed VERY well on this particular deck.


ü Plays great and records well with 1kHz, recorded 0dB playing back @ L=-2dB & R=-2dB on Maxell UDXL-II tapes. With DDD CD we experienced ~ -3 to -4dB, but great, overall sonics! (we really put them through the paces, testing both with well mixed, recently recorded CD material and CD recorded / factory test tones looking for correct head Azimuth and speed accuracy).

ü Recording tests performed with Maxell Normal Bias and Maxell High-Bias UDXL-II (Gold / Black) Tapes.
Here’s the results;
Maxell UDXL-II: 1KhZ with Dolby & CrO2 position @ 0dB = -2dB L & -2dB R with virtually no artifacts
Maxell UDXL-II: 1KhZ W/O Dolby & CrO2 position @ 0dB = -2dB L & -2dB R with virtually no artifacts
Maxell UDXL-II: 1KhZ with Dolby & Normal position @ 0dB = -2.5dB L & -3dB R with virtually no artifacts
Maxell UDXL-II: 1KhZ W/O Dolby & Normal position @ 0dB = -2.5dB L & -2dB R with virtually no artifacts
Recorded program from "ddd" source @ 0dB sounds great as well. It's nice recording on a deck that's 'dialed in' properly)

Total technician time to restore ~28+ HOURS!
  ____________________________
  
Handsomely designed, and classic looking Akai GXC-730D, Auto-Reverse cassette tape deck. Features Piano-Key transport, Auto-Reverse, & Dolby B. Great deck for most systems and uses. One of the 'Biggest' cassette decks ever made.

AKAI GCX-730D Features include:
  
- 3-Mode Auto-Reverse ('Manual' reverse as well of course)
- Bi-Directional Recording
- Huge drive Motor
- Classic 'Piano Key' transport w/ Solenoid assist results in 'Soft Touch operation
- Dolby noise reduction built-in for recording and playback
- Akai's A.D.R. (automatic distortion reduction) changes the recording equalizer characteristics according to the signal level of a certain frequency band to achieve low distortion over an extended frequency range.
- Auto-Limiter (if selected) to limit 'over / peaks' on 'high energy' recordings. Great when recording in 'Live' situations.
- Rear located, adjustable 'Bias / Recording Levels' (don't mess with these without the proper test / calibration gear)
- Tape Type selector for Normal, Fe-CO2, & CrO2 tape
- Dual, Large "VU" signal level meters
- "Peak" LED level indicator that kicks in at +7dB
- Manual Record Level with independent L&R control
- Variable Output Level control (one of the most important features on a deck in our opinion. Allows you to match volume level of other sources, allows adjustment for 'best' pre-amp input to avoid distortion, allows you to change the volume of the deck if you have it located remotely from the pre-amp / receiver as I do, and many other applications)
- Dual front mounted 1/4" mic input jacks
- Front mounted Stereo Headphone jack
- Analog Tape Counter w/ "Memory Stop"

AKAI GCX-730D Specifications:

Track format: 4 track / 2 channel
Heads: One "GX" recording / playback head and two Erase heads. 4 track / 2 channel
Motors: HUGE AC, High Torque, 4-Pole Hysteresis / AC synchronous
Freq Response: w/ FeCr tape; 35-17,000 Hz +/- 3dB @ -20dB
w/ CrO2 tape; 35-16,000 Hz +/- 3dB @ -20dB
w/ Normal / LN tape; 35-14,000 Hz +/- 3dB @ -20dB
Wow & Flutter (WRMS) - 0.080% WRMS
 S/N ratio: >50dB @ +3 on VU meter w/ LN tape. Dolby B NR adds ~10dB above 5kHz
Harmonic Distortion:  <1.5% @ 0dB w/ "LN" tape
Bias Frequency:  100kHz
Erase Ratio:  >70dB
Fast Wind time: <70sec* on C-60 Tapes (again, does have the above mentioned 'slowing' characteristic near the 'end' of REW & FF operation)

There's just something about the feel of 'original piano key' tape transports. This one especially has a great "feel" to it. Like you're engaging some 'huge' mechanism internally. The 'Auto-Reverse' is very 'precise' in it's motion.
Again, we have completely refurbished and thoroughly tested this deck, with multiple recording tests (as stated previously). Cosmetically, other than the knob with scuffs in it, it's condition! Also great for transferring your tape collection to CD, Hard-drive or MP3. Includes original box and packing. Comes with an 'e-copy' / pdf download of the Akai GXC-730D owners manual and color brochure.
Measures 17.3" wide x 11.9" deep x 6.9" tall and weighs 26.5 lbs unpacked. Comes with our 90 day limited warranty.
AKAI GCX-730D
Cond. 8.5
$789.
SOLD 11/15/2021
SHIPPING TO STANLEY IN NEVADA

(tape shown in photos not included. We do ship our decks with a 'pre-recorded' tape for playback, made on this 'specific' deck, and a tape to 'practice record' on.) 

(Above text, in it's entirety, property of www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright Information' page for details)

 

 

 

     


 
            NEW LISTING 12/15/2020
 (Click on above thumbnails to enlarge photos)
  warranty
VINTAGE AND FULLY SERVICED W/ WARRANTY
TEAC CASSETTE TAPE DECK
HUGE
TEAC A-510 / A510
(same as TEAC A-500)
#...9261
With DOLBY NR and IC LOGIC TRANSPORT
MADE IN JAPAN!
Circa 1978-80
SOLD 1/10/2022
SHIPPING TO JEAN IN NEW BRUNSWICK, CANADA

ü Our technician has completely and EXTENSIVELY gone through and 'Certified' this unit which involves complete removal and disassembly of the entire transport (not an easy task on this deck), cleaning inside and out, DISASSEMBLING, cleaning and re-lubricating all internal mechanisms and the balance of efforts listed below.



ü Heads inspected for excessive wear (obviously we do this 'early on' as 'excessive' wear will usually negate any further restoration work).

ü Capstan motor spindle bushing re-lubed

ü Capstan burnished

ü NEW, 'reel drive' tire installed for trouble-free service. (These are actually much more important to replace on this deck {and most} than the belts. Without these, the deck won't fast wind very well {if at all}, and will likely 'eat tapes' as the 'take-up' reel won't turn properly)

ü All three Main Drive and Counter belts replaced for trouble-free service.

ü Rubber pinch rollers have been reconditioned

ü Flywheel 'belt surfaces' solvent cleaned

ü Bronze Flywheel bushings solvent cleaned

ü Entire flywheel assemblies re-lubed upon re-assembly

ü Interconnects on 'transport circuit board' repaired

ü All internal pots, switches and controls cleaned and tested for noise-free function.

ü Heads have been cleaned and de-magnetized as well as the entire transport.

ü Head alignment and azimuth at 125Hz, 1kHz and 10kHz adjusted for BOTH directions for 'peak performance' with O-Scope and w/ STL and TEAC MTT-257H calibration / alignment tapes. Both channels now even output.

ü FF, REW, & Play transport functions all test perfectly and controls tested for 'positive / accurate' responsive w/ new idler tire installed.

ü 'Silicone Damped' Eject door operates smoothly.

ü Tape Counter 'Reset' button fabricated & tested

ü Tape Counter Function tested

ü Dolby NR circuits / function tested

ü 'Memory / Zero Return' function tested

ü Meters adjusted to even zero with symmetric with Volt meter, O-Scope and w/ STL and TEAC MTT-257H calibration / alignment tapes. Both channels now even output.

ü Both Internal playback amplifier channels adjusted with Volt meter, O-Scope and w/ STL and TEAC MTT-257H calibration / alignment tapes. Both channels now even output.

ü Meters adjusted to even zero with symmetric input with Volt meter, O-Scope and w/ STL and TEAC MTT-257H calibration / alignment tapes. Both channels now even output.

ü Both Internal Record amplifier channels adjusted with Volt meter, O-Scope and w/ STL and TEAC MTT-257H calibration / alignment tapes.

ü Pinch roller and heads all in GREAT condition!!!

ü Overall floor noise measured at >-60dB.

üSpeed adjusted internally to 100% accuracy BOTH directions, with 1kHz factory calibration tape and frequency counter (meaning 1kHz calibration tape plays back at 1000Hz +/- 1Hz)

ü Cosmetically, there are some 'whiteish spots" that we weren't able to affect. 409, Alcohol, nor Naptha seemed to have any effect on them.

ü Plays great and after adjustment, records AMAZINGLY well w/ following results;

ü With White Noise recorded @ -0dB w/o Dolby engaged PB = -3dB & With White Noise recorded @ -10dB w/o Dolby engaged PB = 0dB

ü With White Noise recorded @ -10dB w/o Dolby engaged PB = -10dB & @ 10kHz w/o Dolby engaged PB = -10dB on Maxell UDXL-II / High Bias tape

ü With 1kHz recorded @ 0dB with Dolby engaged on Maxell XL-II (high bias) tapes PB = -2dB

ü With 'ddd' CD recorded @ 0dB with Dolby engaged; -3dB on Maxell UDXL-II / High Bias tape

Bottom line is this deck sounds great for playback or recording (always make sure you're playing back 'good quality' tape recordings)
Total technician time to restore 11+ HOURS!
____________________________

The Teac A-510 / A-500 with 'Dolby NR and IC Logic Transport', Stereo Cassette Tape Deck. Great deck for doing tape transfers if your tapes were recorded with no NR or with "Dolby B" or for making some awesome 'new' recordings or 'mix tapes' (hey, it's 'the thing' again). This deck is a pleasure to use, and has a great 'feel' due to it's size and transport function. As far as cosmetics, it's BEAUTIFUL. Was taken very good care of before it came to us, and is even more astounding now. Very impressive looking deck.

Teac A-510 Features include:
  
-  "Soft touch / IC LOGIC control" tape transport (allows you to switch between 'Fast Wind' or 'Play' modes without pressing 'Stop' w/ no fear of 'spilling / dumping tape')
- Selector for Normal (EX / I), CrO2 (SX / II) & Metal (ZX / IV) Tape Type
- 3-Position Selector for Tape Equalization for Normal (EX / I), CrO2 (SX / II) & Metal (ZX / IV) Tape Type on playback
- Dual Fluorescent VU Level Meters
- Analog Tape counter 
- Variable Output Level control (one of the most important features on a deck in our opinion)
- Dolby B NR
- Record Muting
- Real 'Potentiometer' Record level controls that are 'gear coupled' (meaning when you turn one, the other one responds as well. They can be turned independently for 'fine adjustment' as they're 'clutch coupled' as well)
- Memory Stop for counter
- Dual, Front mounted, 1/4", Microphone Jacks
- Front mounted, 1/4", Stereo Headphone jack
- RCA and DIN I/O's on rear panel
- Timer Play / Record function. (IMPORTANT NOTE ABOUT 'TIMER SWITCH' ON THIS DECK. If the 'Timer' switch is in any position other than "OFF", and the tape plays thru to 'Auto-Stop', then no other function on the deck will commence until the 'Timer' switch is turnted to "Off". That is what the 'sticker' on the top of the unit indicates (and we found to be the case))
- Multi-pin port on rear panel for optional wired remote, TEAC RC-90 (remote not included)

Teac A-510Specifications:
 
Track format: 4 track / 2 channel
Motors: 2x, 1x DC Coreless 'Reel', & 1x FG Servo Controlled DC 'Capstan'
Wow & Flutter (WRMS): 0.07% WRMS
Tape Speed: 1-7/8 ips
Speed Deviation: 0.015% (we did not find ANY speed deviation when bench testing following restoration and / or auditioning
Harmonic Distortion / THD: <2.0% @ 1kHz & 0dB (High Bias Tapes)
S/N ratio w/ CrO2 tape: >48db w/ Dolby dis-engaged (and Normal Bias Tapes)
>53db w/ Dolby-B engaged (over 10kHz and High Bias Tapes)
Bias Frequency: 100K
Channel Separation: min 30dB @ 1K
Adjacent Track Cross-talk: min 40dB @ 125Hz
Fast Wind Time: ~90 Seconds for C-60 tape
  
Again, we have completely cleaned, refurbished / serviced and thoroughly tested this Teac A-510 cassette tape deck.
Great for transferring your no NR or Dolby B NR encoded tape collection to CD, Hard-drive or MP3 especially with the 'Tape EQ' selector for 'fine tuning' older tapes. Built very well! Again, not going to win any beauty contests, but performs decently. Due to it's size, overall feel, the 'input controls' and the 'transport control' this deck really is a blast to use. Comes with an 'e-copy / pdf download' of the TEAC A-510-MKII owners / users / instruction manual, and the TEAC A-510 / A-500 cassette tape deck service manual if the purchaser desires. Measures 18.6" wide x 13.5" deep x 7.25" tall and weighs a VERY HEAVY 24 lbs unpacked. Just in-case you 'too casually' read past that last little bit,
IT'S A TWENTY-FOUR POUND CASSETTE DECK!
Includes our standard 90 day limited warranty. 
TEAC A-510
Cond. 7.5+
SOLD 1/10/2022
SHIPPING TO JEAN IN NEW BRUNSWICK, CANADA

(tape shown in photos not included. We do ship our decks with a  a 'pre-recorded' tape for playback, made on this 'specific' deck, and a tape to 'practice record' on.) 

(Above text, in it's entirety, property of www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright Information' page for details)

 

 

         

NEW LISTING 11/12/2021
 (Click on above thumbnails to enlarge photos) 
warranty
VINTAGE & FULLY SERVICED W/ WARRANTY
NAKAMICHI CASSETTE DECK
NAKAMICHI BX-1
STEREO CASSETTE TAPE DECK
With DOLBY B NR
#...9858
Circa 1982-83
SOLD 11/19/2021
SHIPPING TO STEPHEN IN INDIANA

ü Our technician has completely and EXTENSIVELY gone through and 'Certified' this unit which involves complete removal and partial disassembly of the entire transport, cleaning inside and out, DISASSEMBLING, cleaning and re-lubricating all internal mechanisms and the balance of efforts listed below.

ü Heads inspected for excessive wear (obviously we do this 'early on' as 'excessive' wear will usually negate any further restoration work).

ü Faulty voltage regulator, IC401 replaced in power supply, as instead of supplying 12VDC, it was offering up only 1.5VDC.

ü Removed 'drive / Transport' assembly, solvent cleaned all pulley and bearing surfaces, then re-lubed where necessary during re-assembly

ü Capstan REMOVED, cleaned / burnished

ü New 'Idler' tire #STC-5629 installed for trouble-free service.



ü New #42-465 Main drive / capstan belt replaced for trouble-free service.

ü New #42-1060 Counter belt replaced for trouble-free service.

ü Rubber pinch roller has been reconditioned

ü Heads have been cleaned and de-magnetized as well as the entire transport.

ü Head alignments and azimuth @ 10kHz adjusted for 'peak performance' with O-Scope

ü All 'user' potentiometers / controls removed, then cleaned and tested for noise-free function.

ü All internal pots, switches and controls cleaned and tested for noise-free function.

ü Both spindles in perfect alignment.

ü Heads are in great condition

ü Internal playback levels adjusted for even playback w/ alignment tape, Oscilloscope, and mVAC meter

ü Internal Record amplifier channels adjusted for 'even recording' w/ B&K Sine / Function generator test tone on O-Scope

ü Playback meters adjusted for 'playback' zero'd with factory test tone tape.

ü Pinch roller and heads all in GREAT condition!!!

ü While there was originally some 'flutter' at 10kHz, following our restoration, we detected none.

ü Speed adjusted to 99.99% accuracy BOTH directions, with 1kHz factory calibration tape (meaning 1kHz calibration tape plays back at 1001Hz +/- 1 Hz)

ü FF, REW, & Play transport functions all test adequately* and controls tested for 'positive / accurate' responsive.
* Nakamichi decks from this series are relatively known for having fairly 'sluggish' Fast Wind characteristics depending on progress thru the tape. We have optimized this one to it's best ability, but will still be slower than other decks once it reaches the extreme ends of progress thru a tape.

ü Eject door operates smoothly.

ü Dolby circuits / function tested

ü Floor noise measured at -60dBm

ü Plays great and after adjustment, records well w/ following results;
With Pink Noise recorded at 0dB w/o Dolby engaged; PB @ -2dB (and exhibited good 'top end performance in playback' with Maxell UDXL-II / High Bias tapes

With 'Real World', DDD CD music recorded at 0dB w/ Dolby-C engaged; 0dB and great 'brilliance' (and exhibited good 'top end performance in playback' with Maxell 'UD XL-II' / High Bias tapes)
Total technician time to restore 12.5+ HOURS!
  ____________________________

NAKAMICHI is known for 'Cassette Decks', but they were expensive when new, so we don't see a lot floating around on the secondary market, so when we do, it's always a treat. Here's a NAK BX-1, which following all of the above listed service work, is READY TO GO!

Nakamichi BX-1 Features:
 
- 2-Motors
- IC Logic, 'Silent Mechanism' Tape Transport controls (allows you to switch between 'Fast Wind' or 'Play' modes without pressing 'Stop' w/ no fear of 'spilling / dumping tape')
- 2 Motor Transport (DC Servo motors. One for Capstan drive and one for Reel drive)
- Dolby B Noise Reduction
- Tape type selector for Normal (Type-1) / Chrome (Type-2) & Metal tapes
- 2-Position Tape Equalization to optimize playback of different tape types
- Dual, LED level meters
- Analog Tape Counter
- Memory tied to the counter for 'Zero Stop'
- Front-mounted 1/4" stereo headphone jack
- Timer option for Play or Record start

Nakamichi BX-1 Specifications:
 
Track format: 4 track / 2 channel
Heads: 2x
Motors: 2, DC Servo Capstan Motor, DC Reel Motor
Freq Response; 20-20,000Hz +/- 3db w/ All Tape types @ -20dB
Wow & Flutter (WRMS): <0.06% WTD RMS
Tape Speed: 1-7/8 ips +/- 0.5%
Harmonic Distortion / THD: <1.0% @ 1kHz & 0dB (High Bias Tapes)
Bias Frequency: 105kHz
Erasure: >60dB below saturation level @ 100Hz / 0dB
Separation: >36dB @ 1kHz, 0dB
Line Input 'Nominal': 50mV & <30K Ohms
Line Output 'Nominal': 500mV & 2.2K Ohms (w/ output pot maxed)
S/N ratio w/ CrO2 tape: >62db w/ Dolby B engaged (and High Bias Tapes)
Headphones Output: 2.2mW @ 8 Ohms
Fast Wind Time: ~80-90 Seconds for C-60 tape

Again, as mentioned above, our tech has gone through it completely cleaning all parts, controls and tape mechanism. As mentioned, the power supply was originally not functioning correctly, so before restoration could commence, we replaced a faulty voltage regulator.
We also checked, cleaned, reconditioned and / or replaced rubber components. We completely de-magnetized the heads and transport. Capstan motor speed adjusted to exact spec! Tape speed re-adjusted to 100% accuracy, ie; 1 kHz = 1 kHz! And with it's service work completed the deck records incredibly well and plays back utilizing Maxell UD XL-II tapes at -2dB down! 
Cosmetically there are numerous scratches to the black paint, on the top and sides of the sheet metal housing. Probably from someone setting a unit on top of it that didn't have feet and sliding it across shelves. Of course you only notice that when looking 'down from above' the deck, so in a rack, wouldn't be seen. Overall, the deck looks good and sounds great! Great for transferring your tape collection to CD, Hard-drive or MP3. Plays and Records well. Very clean and usable deck! Includes a pdf / e-copy download of the Nakamichi BX-1 owners / users / instruction manual. Measures 17" w X 10" d X 4.25" h and unpacked weight is 13 lbs. Comes with our 90 day limited warranty.
Nakamichi BX-1
 Cond. 8.0
SOLD 11/19/2021
SHIPPING TO STEPHEN IN INDIANA

(tape shown in photos not included. We do ship our decks with a  a 'pre-recorded' tape for playback, made on this 'specific' deck, and a tape to 'practice record' on.) 

(Above text, in it's entirety, property of www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright Information' page for details)

 

 

    

             NEW LISTING 11/12/2021
 (Click on above thumbnails to enlarge photos) 
warranty
FULLY SERVICED / REFURBISHED / RESTORED W/ WARRANTY
TEAC CASSETTE TAPE DECK
TEAC V-2RX
3-HEADS!
WITH DOLBY B & dbx with IC LOGIC TRANSPORT
& 'FINE BIAS' ADJUSTMENT
#...0590
Circa early 1982-84
Made in Japan
SOLD 2/3/2022
SHIPPING TO DAVID IN TEXAS

Original issues observed (mostly the issues common with all 40 year old tape decks): "No play movement due to perished drive belt, so due to that, unable to test further until that was addressed"

ü Our technician has completely and EXTENSIVELY gone through and 'Certified' this unit which involves total disassembly of the transport, cleaning inside and out, COMPLETELY DISASSEMBLING, cleaning and re-lubricating all internal mechanisms and the balance of efforts listed below.

ü Heads inspected for excessive wear (obviously we do this 'early on' as 'excessive' wear will usually negate any further restoration work).

ü Counter belt - NO counter belt. It's GEAR DRIVEN!!!

ü Main Capstan / Flywheel belt reconditioned.

ü Main pulley end bushing lubed.

ü Rubber pinch roller mechanism bushings & axles cleaned of old lube, reconditioned and re-lubed.

ü Capstans cleaned / burnished

ü All internal pots, switches and controls cleaned and tested for noise-free function. (Pre/Post and Tape/Source switches required disassembly and removal of front fluorescent display to access for cleaning. This step alone took 2 hours)

ü All Fluorescent displays and LED's working fine.

ü Both hub spindles in perfect alignment

ü FF, REW, & Play transport functions all test perfectly and controls tested for 'positive / accurate' responsive.

ü Heads in great shape as well, with many years of performance left in them

ü Heads have been cleaned and de-magnetized as well as the entire transport.

ü Head alignment and azimuth at 125Hz, 1kHz and 10kHz adjusted for BOTH directions for 'peak performance' with O-Scope and w/ STL and TEAC MTT-257H calibration / alignment tapes. Both channels now even output.

ü Both Internal playback amplifier channels adjusted with Volt meter, O-Scope and w/ STL and TEAC MTT-257H calibration / alignment tapes. Both channels now even output.

ü Meters adjusted to even zero with symmetric input with Volt meter, O-Scope and w/ STL and TEAC MTT-257H calibration / alignment tapes. Both channels now even output.

ü Both Internal Record amplifier channels adjusted with Volt meter, O-Scope and sine-wave generators and 'pink / white noise sources'. Both channels now even output.

ü Pinch roller and heads all in GREAT condition!!!

ü Speed adjusted to 100% accuracy BOTH directions, with with TEAC MTT-257H 1kHz factory calibration tape (meaning 1kHz calibration tape plays back at 1000Hz +/- 1 Hz. The service manual allows for an error range of +/- 23Hz! Yuck!!!)

ü Pinch roller re-surfaced, and in GREAT condition!!!

ü Playback meters zero with factory test tone tape.

ü Tape Counter and 'Memory' Function tested

ü Tape well door needed 'hinge' mechanism work

ü Speed adjusted internally to 100% accuracy with 1kHz factory test tape (meaning 1kHz calibration tape plays back at 1000Hz +/- 1Hz) (utilized TEAC MTT-257H)

ü Floor noise measured at -74dBu

Following service / fine tuning;

ü Recording tests performed with Maxell High-Bias UDXL-II (Gold / Black) Tapes.
Here’s the results;
Maxell UDXL-II: 1KhZ with No NR @ 0dB; L= 0dB & R= 0dB R with virtually no artifacts
Maxell UDXL-II: PN with No NR @ 0dB; L= -1dB & R= -1dB R
Recorded program from "ddd" source @ 0dB sounds great as well. It's nice recording on a deck that's 'dialed in' properly)

Following restoration, during one of our extensive 'post tests' we discovered that the deck was not erasing consistently. We eventually discovered that the erase head had it's own mechanism to move it, which was an originally 'lubricated' parts. Well, just as all 30+ year old lube gels and stiffens up, so had that. We then disassembled the erase head pivot arm, solvent cleaned it, lubricated it and re-assembled mechanism. Worked as intended then. This process alone added 2.5 hours to restoration. This was a mechanism somewhat different than we come across in most decks.

Total technician time to restore ~15.5 HOURS!
  ____________________________
  
This is one 'LOADED' cassette deck. The TEAC V-2RX, Stereo Cassette Tape Deck w/ Three-heads, IC logic, Fine-Bias, Fluorescent display, Dolby B & *dbx NR & MORE!

TEAC V-2RX Features include:
  
- Three-Heads!
- Super Hard, Permalloy' PB / REC heads
- 2 Motors (one for capstan drive and a separate motor for reel drive)
- Adjustable Fine Bias Control for Recording allows you to really 'dial in' the sonic qualities for each different tape formulation (brand / model) you may want to use
- IC logic "touch-control" tape transport with motor driven 'cam control mechanism' (allows you to switch between 'Fast Wind' or 'Play' modes without pressing 'Stop' w/ no fear of 'spilling / dumping tape')
- Dolby-B & dbx noise reduction built-in for recording and playback
- dbx 'Disc' decoder. Allows you to get "dbx" benefits from encoded LP's (I've had this on my personal deck for almost 4 decades!)
- Parametric EQ that can be utilized to imprint EQ characteristics to tape. Handy if you wish to play tapes on another system that needs certain frequencies accentuated or attenuated.
- TapeType / EQ selector for Normal, CrO2 & Metal tape
- Variable Output level control
- Fluorescent display / VU signal level Indicators
- Separate Record Level controls
- Record Mute function
- Front mounted Stereo Headphone jack
- Digital Fluorescent Tape Counter counts in 'Real Time'
- Selectable 'Memory' points
- Dual 1/4" microphone inputs
- 8-pin port for optional TEAC RC-102 'wired' remote control (not available from us)

TEAC V-2RX Specifications:

Track format: 4 track / 2 channel
Heads: Super-hard Permalloy, Three Heads; Erase, Record and separate Play (most decks are "2-head" and use a combined Play / Record head. Separate Record and Play heads allow for nearly instant monitoring of recording by listening to the actual signal just recorded on the tape, not just the 'source signal' coming into the deck. Great for making level, EQ and Fine Bias adjustments. Also allows our tech to really 'dial in' a deck from a performance standpoint).
Motors: 2. 1 for capstan drive and one for reel drive. Both are DC
Freq Response w/ Dolby OFF: w/ Metal; 20-20,000 Hz +/- 3dB
w/ Chrome / CrO2; 20-19,000 Hz +/- 3dB @
w/ 'Normal'; 20-18,000 Hz +/- 3dB
Wow & Flutter (WRMS): 0.06% WRMS
S/N ratio w/ CrO2 / Metal tape:
>92db w/ dbx
>65dB w/ Dolby B
>60dB w/ Dolby Off
Bias Frequency:  100kHz
Fast Wind time (C-60): 90 sec.

Again, we have completely refurbished and thoroughly tested this deck. From a 'feature' standpoint, IT'S LOADED!!!
Cosmetically, it's in fabulous condition with, other than some very light scratches on the rear part of the top cover / bonnet, there's really nothing to mention.
Great deck for just about any system. Also great for transferring your tape collection to CD, Hard-drive or MP3. Includes an 'e-copy / pdf download' of the TEAC V-2RX owners manual.
Measures 17.3" wide x 10.7" deep x 4.25" tall and weighs a heavy ~16 lbs unpacked.
Comes with our 90 day limited warranty.
RESTORED / REFURBISHED / SERVICED TEAC V-2RX
Cond. 8.5++
SOLD 2/3/2022
SHIPPING TO DAVID IN TEXAS


(tape shown in photos not included. We do ship our decks with a  a 'pre-recorded' tape for playback, made on this 'specific' deck, and a tape to 'practice record' on.) 

(Above text, in it's entirety, property of www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright Information' page for details)

 

 

    

             NEW LISTING 11/18/2021
 (Click on above thumbnails to enlarge photos) 
warranty
FULLY SERVICED / REFURBISHED / RESTORED W/ WARRANTY
NAKAMICHI CASSETTE DECK
NAKAMICHI CR-3A
STEREO CASSETTE TAPE DECK
3-HEAD
DOUBLE CAPSTAN
With DOLBY B & C NR
#...2270
Circa 1988-90
SOLD 12/29/2021
SHIPPING TO LEE IN NEW YORK

ü Our technician has completely and EXTENSIVELY gone through and 'Certified' this unit which involves complete removal and partial disassembly of the tape drive / transport, cleaning inside and out, DISASSEMBLING, cleaning and re-lubricating all internal mechanisms and the balance of efforts listed below.



ü Heads inspected for excessive wear (obviously we do this 'early on' as 'excessive' wear will usually negate any further restoration work).

ü Removed both 'capstan / flywheel' assembly, solvent cleaned all pulley and bearing surfaces, then re-lubed where necessary during re-assembly



ü Main drive / capstan belt replaced for trouble-free service.

ü 'Gear driven' hubs, so fewer reel tires for trouble-free service.



ü Motor removed, disassembled and serviced (removed armature, cleaned commutator gaps and cleaned and inspected brushes. Cleaned and lubed bushings and armature shafts).



ü Rubber pinch rollers have been reconditioned w/ Re-Nue

ü Capstan burnished

ü New main drive belt installed for Capstan flywheels as original had perished (started with FRY 10.0, but decided that "42-1995 / 9.1 had overall better performance)

ü New counter belt installed

ü Heads have been cleaned and de-magnetized as well as the entire transport.

ü Head alignments and azimuth at both 1kHz and 10kHz adjusted for 'peak performance' with O-Scope

ü All 'user' potentiometers / controls removed, then cleaned and tested for noise-free function.

ü All internal pots, switches and controls cleaned and tested for noise-free function.

ü Heads are in great condition

ü Internal playback levels adjusted for even playback w/ alignment tape, Oscilloscope, and mVAC meter

ü Playback meters adjusted for 'playback' zero'd with factory test tone tape.

ü Internal Record amplifier channels adjusted for 'even output'

ü Pinch roller and heads all in GREAT condition!!!

ü Speed adjusted to 100% accuracy with TEAC 257H calibration tape, with 1kHz factory calibration tape (meaning 1kHz calibration tape plays back at 1000Hz +/- 1 Hz)

ü FF, REW, & Play transport functions all test perfectly and controls tested for 'positive / accurate' responsive.

ü Eject door operates smoothly.

ü Digital Tape Counter

ü 'Memory Stop / Zero Return' and 'Auto Repeat' function

ü Dolby B & C circuits / function tested

ü Cosmetics are decently clean, with typical, minor wear and one small 'ding' to a rear corner of the face bezel (see above photos)

ü Floor noise measured at -60dBm

Following service / fine tuning;

ü Recording tests performed with Maxell High-Bias UDXL-II (Gold / Black) Tapes.
Here’s the results;
Maxell UDXL-II: 1KhZ with No NR @ 0dB; L= -4dB & R= -4dB R with virtually no artifacts
Maxell UDXL-II: 1KhZ w/Dolby B NR @ 0dB; L= -5dB & R= -5dB R with virtually no artifacts
Maxell UDXL-II: WN with No NR @ -10dB; = -15dB L & R
Recorded program from "ddd" source @ 0dB sounds great as well coming in around -4dB w/o NR on Type II. It's nice recording on a deck that's 'dialed in' properly)

Total technician time to restore 14+ HOURS!
  ____________________________

NAKAMICHI is known for 'Cassette Decks', but they were expensive when new, so we don't see a lot floating around on the secondary market, so when we do, it's always a treat. Here's a NAK CR-3A, "3-Head" deck 'made for recording'! And following all of the above listed service work, it's READY TO GO!

Nakamichi CR-3A Features:
 
- 3-Heads for better record capability
- Dual Capstan 'Closed Loop' transport
- 'Pressure Pad Lifter' (Most Nakamichi tape decks 'lift' the tape away from the 'pressure pad' that's 'built-in' to cassette tape shells, so that the deck can 'manage' the entire tape path.
- IC Logic, 'Silent Mechanism' Tape Transport controls
- 2 Motor Transport
- Dolby B & C Noise Reduction
- Tape type selector for Normal / Chrome & Metal tapes
- Fine Bias Tuning (really becomes useful coupled with the "3-head" design for 'fine tuning' recordings around different tape types)
- 2-Position Tape Equalization to optimize playback of different tape types
- Auto-Slack mechanism (takes up slack in tape upon closing the cassette well door)
- 'One Touch' Rec/Pause
- Record Mute
- Built-in MPX filter for killing the 19kHz pilot tone in FM transmissions
- Variable Output Level control (one of the most important features on a deck in our opinion)
- Dual, LED level meters
- Memory tied to the counter
- Front-mounted 1/4" stereo headphone jack
- Timer option for Play or Record start
- System' remote port for tying in with other, compatible Nakamichi components

Nakamichi CR-3A Specifications:
 
Track format: 4 track / 2 channel
Heads: 3x
Motors: 2, DC Servo Capstan Motor, Flat Torque DC Reel Motor
Freq Response; 20-20,000Hz +/- 3db w/ All Tape types @ -20dB
Wow & Flutter (WRMS): 0.035% wtd
Tape Speed: 1-7/8 ips +/- 0.5%
Harmonic Distortion / THD: <0.9% @ 1kHz & 0dB (High Bias Tapes)
Bias Frequency: 105kHz
Erasure: >60dB below saturation level @ 100Hz / +10dB
Separation: >37dB @ 1kHz, 0dB
Line Input 'Nominal': 50mV & <30K Ohms
Line Output 'Nominal': 500mV & 2.2K Ohms (w/ output pot maxed)
S/N ratio w/ CrO2 tape: >72db @ 400Hz, w/ Dolby C engaged (and High Bias Tapes)
>66db w/ Dolby B engaged (and High Bias Tapes)
Headphones Output: 5mW @ 8 Ohms
Fast Wind Time: ~80 Seconds for C-60 tape

Again, as mentioned above, our tech has gone through it completely cleaning all parts, controls and tape mechanism. We also checked, cleaned, reconditioned and / or replaced rubber components. We completely de-magnetized the heads and transport. Capstan motor speed adjusted to exact spec! Tape speed re-adjusted to 100% accuracy, ie; 1 kHz = 1 kHz! And with it's service work completed the deck records incredibly well and plays back utilizing Maxell UDXL-II tapes at a respectable -4- -5dB down. The looks and sounds great!  Only issue worth mentioning is that the 'supply' reel is missing it's small, black e-clip cover so you see the silver e-clip if you're looking close enough. Great for transferring your tape collection to CD, Hard-drive or MP3. Plays and Records extremely well. Very clean deck and usable deck! Includes a pdf / e-copy download of the Nakamichi CR-3A owners / users / instruction manual. Measures 17" w X 10.5" d X 4" h and unpacked weight is 13lbs. Comes with our 90 day limited warranty.
Nakamichi CR-3A
 Cond. 8.5+
SOLD 12/29/2021
SHIPPING TO LEE IN NEW YORK

(tape shown in photos not included. We do ship our decks with a  a 'pre-recorded' tape for playback, made on this 'specific' deck, and a tape to 'practice record' on.) 

(Above text, in it's entirety, property of www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright Information' page for details)

- Archived

 

    

NEW LISTING 12/15/2020
 (Click on above thumbnails to enlarge photos)
  warranty
VINTAGE, FULLY SERVICED / REFURBISHED / RESTORED
TEAC CASSETTE TAPE DECK
HUGE
TEAC CX-650R
AUTO-REVERSE W/ 'BI-DIRECTIONAL RECORDING'
#...6614
With DOLBY NR
MADE IN JAPAN!
Circa 1980-82
SOLD 1/10/2021
SHIPPING TO JEFF IN CALIFORNIA

ü Our technician has completely and EXTENSIVELY gone through and 'Certified' this unit which involves complete removal and disassembly of the entire transport (not an easy task on this deck), cleaning inside and out, DISASSEMBLING, cleaning and re-lubricating all internal mechanisms and the balance of efforts listed below.



ü Heads inspected for excessive wear (obviously we do this 'early on' as 'excessive' wear will usually negate any further restoration work).

ü Head rotating gear inspected with a jewelers loop prior to starting any restoration work, and found to be 'hairline' crack free.

ü Capstan motor spindle bushing re-lubed

ü Capstan burnished

ü Internal 23VDC power supply tested to 23.2Volts

ü 2X NEW, 'reel drive' tires installed for trouble-free service. (These are actually much more important to replace on this deck (and most) than the belts. Without these, the deck won't fast wind very well, and will likely 'eat tapes' as the 'take-up' reel won't turn properly)

ü All new internal Drive and Counter belts installed for trouble-free service.

ü Rubber pinch rollers have been reconditioned

ü Both Flywheel 'belt surfaces' solvent cleaned

ü Bronze Flywheel bushings solvent cleaned

ü Both Flywheel thrust pads cleaned

ü Entire flywheel assemblies re-lubed upon re-assembly  

ü Head 'Reverse' mechanism disassembled, cleaned of 'stiff / old' lube that was impeding movement, re-lubed and re-assembled.

ü Heads have been cleaned and de-magnetized as well as the entire transport.

ü Head alignments and azimuth at both 1kHz and 10kHz adjusted for BOTH directions for 'peak performance' with O-Scope

ü All internal pots, switches and controls cleaned and tested for noise-free function.

ü Both spindles in perfect alignment.

ü FF, REW, & Play transport functions all test perfectly and controls tested for 'positive / accurate' responsive.

ü 'Silicone Damped' Eject door operates smoothly.

ü Tape Counter Function tested

ü Dolby NR circuits / function tested

ü 'Memory / Zero Return' function tested

ü Heads are in great condition

ü Internal playback levels adjusted for even playback w/ alignment tape, Oscilloscope, and mVAC meter
 

ü Head alignment and azimuth at 125Hz, 1kHz and 10kHz adjusted for BOTH directions for 'peak performance' with O-Scope and w/ STL and TEAC MTT-257H calibration / alignment tapes. Both channels now even output for PLAYBACK..

ü Both Internal playback amplifier channels adjusted with Volt meter, O-Scope and w/ STL and TEAC MTT-257H calibration / alignment tapes. Both channels now even output for PLAYBACK..

ü Meters adjusted to even zero with symmetric input with Volt meter, O-Scope and w/ STL and TEAC MTT-257H calibration / alignment tapes. Both channels now even output for PLAYBACK.

ü Internal Record amplifier channels adjusted for 'even output'

ü Pinch roller and heads all in GREAT condition!!!

ü Overall floor noise measured at >-60dB.

ü Speed adjusted internally to 100% accuracy BOTH directions, with 1kHz factory calibration tape and frequency counter (meaning 1kHz calibration tape plays back at 1000Hz +/- 1Hz)

ü Cosmetically, with the exception of a couple of very minor 'corners dings', the deck and the 'wood grain wrapped' case / cabinet looks NEAR NEW!

ü Plays great and after adjustment, records well w/ following results;
With white Noise recorded at -5dB w/o Dolby engaged; -1dB on Maxell UDXL-II / High Bias tapes
With white Noise recorded at -10dB w/o Dolby engaged; 0dB on Maxell UDXL-II / High Bias tapes
With 1kHz recorded at 0dB w/o Dolby engaged; 0dB on Maxell UR (normal bias) tapes
With 10kHz recorded at 0dB w/o Dolby engaged; -6dB on Maxell UDXL-II / High Bias tapes
With 'ddd' CD recorded at 0dB with Dolby engaged; -3.5dB on Maxell UDXL-II / High Bias tapes

Bottom line is this deck sounds amazing for playback or recording (always make sure you're playing back 'good quality' tape recordings)
Total technician time to restore 10.5+ HOURS!
____________________________

The Teac CX-650R, Auto-Reverse with 'Bi-Directional Recording', Stereo Cassette Tape Deck. Great deck for doing your tape transfers if your tapes were recorded with no NR or with "Dolby B" or for making some awesome 'new' recordings or 'mix tapes' (hey, it's 'the thing' again). This deck is a pleasure to use, and has a great 'feel' due to it's size and transport function. As far as cosmetics, it's BEAUTIFUL. Was taken very good care of before it came to us, and is even more astounding now. The deck and the wood grain case could convince you that time had rolled back almost 40 years, and you were seeing it at the original store's retail display.

Teac CX-650R Features include:
  
- Heavy duty transport featuring 'oversized' capstan motor, and VERY large, 'asymmetrical' flywheels
- Triple-Mode Auto-Reverse, with 'Bi-Directional' Recording (not just 'A' side recording!)
-  "Soft touch-control" tape transport
- Selector for Normal (EX / I), CrO2 (SX / II) & Metal (ZX / IV) Tape Type
- 3-Position Selector for Tape Equalization for Normal (EX / I), CrO2 (SX / II) & Metal (ZX / IV) Tape Type on playback
- Dual Analog VU Level Meters
- Analog counter 
- Built-in MPX filter for killing the 19kHz pilot tone in FM transmissions
- Variable Output Level control (one of the most important features on a deck in our opinion)
- Dolby B NR
- Record Muting
- 'Auto-Space' records a 4-second space prior to 'stop' when engaged.
- Real 'Potentiometer' Record level controls that are 'gear coupled' (meaning when you turn one, the other one responds as well. They can be turned independently for 'fine adjustment' as they're 'clutch coupled' as well)
- Memory Stop / Repeat for counter
- Dual, Front mounted, 1/4", Microphone Jacks
- Front mounted, 1/4", Stereo Headphone jack
- Timer Play / Record function.
- Multi-pin port on rear panel for optional wired remote, TEAC RC-100 (remote not included)

Teac CX-650R Specifications:
 
Track format: 4 track / 2 channel
Motors: 2x 1x DC Coreless 'Reel', & 1x FG Servo Controlled DC 'Capstan'
Freq Response; 30-18,000Hz +/- 3db w/ Metal Tape @ -20dB
30-18,000Hz +/- 3db w/ CrO2 Tape @ -20dB
30-15,000Hz +/- 3db w/ 'Normal' Tape @ -20dB
Wow & Flutter (WRMS): 0.06% wtd
Tape Speed: 1-7/8 ips
Harmonic Distortion / THD: <3.0% @ 1kHz & 0dB (High Bias Tapes)
S/N ratio w/ CrO2 tape: >56db w/ Dolby dis-engaged (and Normal Bias Tapes)
>66db w/ Dolby-B engaged (over 10kHz and High Bias Tapes)
Line Input 'Nominal': 60mV @ 50K Ohms
Line Output 'Nominal': 300mV for a load impedance of 50k Ohms
Headphones Output: 1.0mW @ 8 Ohms
Fast Wind Time: ~80 Seconds for C-60 tape
  
Again, we have completely cleaned, refurbished / serviced and thoroughly tested this Teac CX-650R cassette tape deck.
Great for transferring your no NR or Dolby B NR encoded tape collection to CD, Hard-drive or MP3 especially with the 'Tape EQ' selector for 'fine tuning' older tapes. Built very well! Looks near new, works great and sounds fabulous. Due to it's size, overall feel, the 'input controls' and the 'transport control' this deck really is a blast to use. Comes with an 'e-copy / pdf download' of the TEAC CX-650R cassette tape deck owners / users / instruction manual. Measures 18.5" wide x 13.5" deep x 7" tall and weighs a VERY HEAVY 26 lbs unpacked. Just in case you 'too casually' read past that last little bit,
IT'S A TWENTY-SIX POUND CASSETTE DECK!
Includes our standard 90 day limited warranty. 
TEAC CX-650R
Cond. 8.5++++
SOLD 1/10/2021
SHIPPING TO JEFF IN CALIFORNIA

(tape shown in photos not included. We do ship our decks with a  a 'pre-recorded' tape for playback, made on this 'specific' deck, and a tape to 'practice record' on.) 

(Above text, in it's entirety, property of www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright Information' page for details)

 

 

    

    

             NEW LISTING 12/20/2020
(Click on above thumbnails to enlarge photos)
warranty
FULLY SERVICED / REFURBISHED
PRE-OWNED /
PIONEER MULTI-PLAY CASSETTE TAPE DECK
PIONEER CT-M6R
DOES HAVE A FEW 'BATTLE SCARS', BUT MAKES UP FOR THAT IN PERFORMANCE!
MULTI-PLAY, 6 TAPE CHANGER!
HX PRO deck with DOLBY B & C
"QUICK" AUTO-REVERSE
"RELAY" PLAY / RECORD (means will continuously record thru BOTH sides of ALL 6 tapes!!!)
#...2441
Circa 1990-1991
MIJ
SOLD 1/29/2021
SHIPPING TO SCOTT IN CALIFORNIA

ü Our technician has completely and EXTENSIVELY gone through and 'Certified' this unit cleaning inside and out, tape transport mechanism removed, cleaning and re-lubricating internal mechanisms and the balance of efforts listed below. (this was already a VERY CLEAN & LIKE NEW deck inside before we started our service work)

ü AC voltage set for 'North American' use, and Internal DC power supply tested to correct Voltages before any work commenced

ü Heads inspected for excessive wear (obviously we do this 'early on' as 'excessive' wear will usually negate any further restoration work).

ü Head rotating gears on both wells inspected with a jewelers loop prior to starting any restoration work, and found to be 'hairline' crack free.

ü Main Drive and Counter belts inspected and are in 'like new' cond.

ü Rubber pinch rollers have been reconditioned

ü One VERY important note about this deck. The spindles are 'gear driven' which means that it should WAY OUTLAST most other decks that utilize standard, rubber 'idler tires' for reel activation (everyone thinks that 'belts' are all you need to replace to make a cassette deck work.  While belts are important, it's almost always the 'idler tire' that is the "Achilles Heel"  of cassette decks and causes the VAST majority of cassette deck problems).

ü Both spindles in perfect alignment.

ü Heads have been cleaned and de-magnetized as well as the entire transport.

ü Head alignment and azimuth at 125Hz, 1kHz and 10kHz adjusted for BOTH directions on both decks for 'peak performance' with O-Scope and w/ STL and TEAC MTT-257H calibration / alignment tapes. Both channels now even output.

ü All internal pots, switches and controls cleaned and tested for noise-free function.

ü Front panel removed and disassembled to allow cleaning of the Record and Balance potentiometers.

ü All LED's and fluorescent displays functioning well, with low current draw

ü FF, REW, & Play transport functions all test perfectly and controls tested for 'positive / accurate' responsive.

ü 'Mechanized' Eject door operates smoothly.

ü Tape Counter Function tested

ü Dolby NR circuits / function tested

ü 'Memory / Zero Return' function tested

ü Meters adjusted to even zero with symmetric with Volt meter, O-Scope and w/ STL and TEAC MTT-257H calibration / alignment tapes. Both channels now even output.

ü Both Internal playback amplifier channels adjusted with Volt meter, O-Scope and w/ STL and TEAC MTT-257H calibration / alignment tapes. Both channels now even output.

ü Meters adjusted to even zero with symmetric input with Volt meter, O-Scope and w/ STL and TEAC MTT-257H calibration / alignment tapes. Both channels now even output.

ü Both Internal Record amplifier channels adjusted with Volt meter, O-Scope and w/ STL and TEAC MTT-257H calibration / alignment tapes. Both channels now even output.
ü Pinch roller and heads all in GREAT condition!!!

ü Overall floor noise measured at >-60dB.

ü Speed adjusted internally to 100% accuracy BOTH directions, with 1kHz factory calibration tape and frequency counter (meaning 1kHz calibration tape plays back at 1000Hz +/- 1Hz)

ü Plays great and after full service and adjustment, records AMAZINGLY well w/ following results;

1kHz recorded @ 0dB with Dolby C engaged on Maxell XL-II (High bias) tapes plays back @ -2 dB L&R.

Full Bandwidth 'White Noise' recorded @ 0dB w/o NR engaged on Maxell XL-II (High bias) tapes plays back @ -3dB L&R

Full Bandwidth 'White Noise' recorded @ 0dB with Dolby C engaged on Maxell XL-II (High bias) tapes plays back @ 0dB L&R, which equals ZERO dB loss!!

"Real World" test, 'DDD' CD recorded at 0dB +/- 3dB with Dolby C engaged, on Maxell UDXL-II / High Bias tapes sounds great

Bottom line is this deck sounds amazing for playback or recording (always make sure you're playing back 'good quality' tape recordings)

ü Again, Cosmetically, the deck has a few 'battle scars' and isn't going to win any 'beauty contests', but makes up for it in performance.
Total technician time to restore 4+ HOURS!
____________________________
 
This Pioneer CT-M6R is a well built and designed deck and is a BLAST TO USE! (I personally used it extensively following it's refurb / service). It's super quality in design and build, and it's loaded. It's a 'Double Auto-Reverse', with 'Bi-Directional' Recording, AND it's a 6 tape changer that can record up to 9 HOURS CONTINUOUSLY!
 This is an incredible deck for performance and IT'S LOADED! It would be at home in any audio system.

Pioneer CT-M6R Features include:
  
- HX-PRO (Extended Head-Room Recording) (One of the BEST features of 'modern / recent' cassette decks)
- 6 Cassette Tape Changer
- Dolby B & C Noise Reduction built-in
- Relay Recording. This means that you can record all 6 tapes on both sides for 9 hours of continuous recording time w' standard 90 minute tapes
- IC Logic "touch-control" tape transport on both decks
- Super-quality tape heads- "MS" Music Search" cuing
- OTR (One Touch Recording and Pause)
- Auto-Selector for Normal, CrO2 & Metal Tape Type
- Full fluorescent readout screen
- Dual fluorescent signal level meters
- Multi-Mode, Digital tape counter for either tape well. Gives "Standard" count or "Real Time" and Time Remaining
- "All Rewind" (this ends up being a VERY handy feature. If you have a bunch of tapes that were stopped in random spots, just put them all in, and press "All Rewind". It will automatically go thru each and re-wind either Side A or B, depending on how you load the tapes)
- Record Level control
- Record Mute function
- Timer Play / Record / Off selector
- 1/4" Stereo Headphone jack
 - Wireless Remote Control (INCLUDED)
 - "CD Synchro" for other Pioneer compatible gear
- AND LIKELY MORE THAT WE DIDN'T LIST
  
Pioneer CT-M6R Specs:
 
 Track format: 4 track / 2 channel
Heads: Super-Hard, Permalloy for Recording and Playback head.
Ferrite for Erase head
Motors: 4 total. "DC Servo" motor for capstan and standard DC motors for Reels, Loading, and well door.
Wow & Flutter (WRMS): 0.055%
Freq Response: (-20dB) - 20-19,000 Hz, Metal Tape
- 20-18,000 Hz, Chrome Tape
- 20-17,000 Hz, Norm tape
S/N ratio: >58dB NR Off, @ 3% THD
NR reduction: Dolby B = >10dB@ 5kHz
Dolby C = >19dB@ 5kHz
THD: 1.0% @ 0dB
Line in: 63mV, 50k Ohms
Line Out: 0.316 V @ 5.8KOhms
 
This Pioneer CT-M6R is an incredible deck and a rare one too. Only the forth cassette changer we've had  since I sold an Aiwa changer when new around 1984. You would likely be the only 'kid on the block' with one of these.
Also great for transferring your tape collection to CD, Hard-drive or MP3.  As it can do up to 9 hours of continuous recording, think of the possibilities. Built very well! Looks like new and sounds great. Deck includes a copy of original owners manual. Measures  16.5" wide x 14.5" deep x 5.5" tall and weighs 19 lbs unpacked. Comes with our 90 day limited warranty.
Cond. 8
 PIONEER CT-M6R
SOLD 1/29/2021
SHIPPING TO SCOTT IN CALIFORNIA

W/ original Wireless Remote Control


(tape shown in photos not included. We do ship our decks with a  a 'pre-recorded' tape for playback, made on this 'specific' deck, and a tape to 'practice record' on.) 

(Above text, in it's entirety, property of www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright Information' page for details)

 

 

    

          NEW LISTING 2/22/2020
 (Click on above thumbnails to enlarge photos)   warranty
VINTAGE AND FULLY SERVICED W/ WARRANTY
LUXMAN CASSETTE TAPE DECK
LUXMAN KX-106
WITH HX-PRO, DOLBY B, C & *dbx with IC LOGIC TRANSPORT
& AUTO-REVERSE & 'FINE BIAS' ADJUSTMENT
GEAR DRIVEN SPINDLES - NO IDLER TIRES!!!
#...747A
Circa early 1986-88
Made in Japan
SOLD 4/22/20
SHIPPING TO SHADRACH IN CANADA

ü Our technician has completely and EXTENSIVELY gone through and 'Certified' this unit which involves total disassembly of the transport, cleaning inside and out, COMPLETELY DISASSEMBLING, cleaning and re-lubricating all internal mechanisms and the balance of efforts listed below.

ü Heads inspected for excessive wear (obviously we do this 'early on' as 'excessive' wear will usually negate any further restoration work).

ü Spindles are GEAR DRIVEN which means NO idler tires / wheels to glaze over, crack and mis-behave with none of the typically associated ills.

ü Counter belt - NO counter belt. It's GEAR DRIVEN!!!

ü Main Capstan / Flywheel belt reconditioned.

ü Rubber pinch roller mechanism bushings & axles cleaned of old lube, reconditioned and re-lubed.

ü Capstans cleaned / burnished

ü All internal pots, switches and controls cleaned and tested for noise-free function.

ü All Fluorescent displays and LED's working fine.

ü Both hub spindles in perfect alignment and end locks intact and staying put.

ü FF, REW, & Play transport functions all test perfectly and controls tested for 'positive / accurate' responsive.

ü Heads in great shape as well, with many years of performance left in them

ü Heads have been cleaned and de-magnetized as well as the entire transport.

ü Head alignment and azimuth at 125Hz, 1kHz and 10kHz adjusted for BOTH directions for 'peak performance' with O-Scope and w/ STL and TEAC MTT-257H calibration / alignment tapes. Both channels now even output.

ü Both Internal playback amplifier channels adjusted with Volt meter, O-Scope and w/ STL and TEAC MTT-257H calibration / alignment tapes. Both channels now even output.

ü Meters adjusted to even zero with symmetric input with Volt meter, O-Scope and w/ STL and TEAC MTT-257H calibration / alignment tapes. Both channels now even output.

ü Both Internal Record amplifier channels adjusted with Volt meter, O-Scope and sine-wave generators and 'pink / white noise sources'. Both channels now even output.

ü Pinch roller and heads all in GREAT condition!!!

ü Speed adjusted to 100% accuracy BOTH directions, with with TEAC MTT-257H 1kHz factory calibration tape (meaning 1kHz calibration tape plays back at 1000Hz +/- 1 Hz)

ü Pinch roller re-surfaced, and in GREAT condition!!!

ü Playback meters zero with factory test tone tape.

ü Tape Counter and 'Memory' Function tested

ü White Noise recorded @ 0dB w/ Dolby-C engaged = PB @ -2dB on Maxell UDXL-II / High Bias tapes

ü 1kHz Sine-wave recorded @ 0dB w/ Dolby-C engaged = PB @ -1.5dB on Maxell UDXL-II / High Bias tapes

ü 'ddd' CD recorded recorded @ 0dB w/ Dolby-C engaged = PB @ ~ -1dB on Maxell UDXL-II / High Bias tapes


ü 1kHz Sine-wave recorded @ 0dB w/ *dbx engaged = PB @ -1.5dB on Maxell UDXL-II / High Bias tapes.

ü 'ddd' CD recorded recorded @ +3dB w/ *dbx engaged = PB @ ~ -6dB on Maxell UDXL-II / High Bias tapes
So this is the one aspect of the deck that we were not able to 'practically' rectify. It's record and playback capability with dbx NR engaged is about 9dB down. It probably needs it's 'dbx chips' replaced, but beyond the scope of practicality for us and this deck.

ü Speed adjusted internally to 100% accuracy with 1kHz factory test tape (meaning 1kHz calibration tape plays back at 1000Hz +/- 1Hz) (utilized TEAC MTT-257H)

ü Floor noise measured at -60dBm

Total technician time to restore ~5 HOURS!
  ____________________________
  
This is one 'LOADED' cassette deck. The Luxman KX-106, Auto-Reverse Stereo Cassette Tape Deck w/ Sendust heads, IC logic, Fluorescent display, HX-Pro and Dolby B, C & *dbx NR & MORE!

Luxman KX-106 Features include:
  
- Super Hard, 'HEXALAM / Permalloy' PB / REC heads
- HX PRO capable
- Auto-Reverse
- Adjustable Fine Bias Control for Recording
- IC logic "touch-control" tape transport with motor driven 'cam control mechanism' (allows you to switch between 'Fast Wind' or 'Play' modes without pressing 'Stop' w/ no fear of 'spilling / dumping tape')
- Dolby-B, C & *dbx (see notes above re; dbx) noise reduction built-in for recording and playback
- Auto-Tape Bias Type / EQ selector for Normal, CrO2 & Metal tape
- LED VU signal level Indicators
- Manual Record Level with L&R balance control
- Record 'Mute / Auto-Space' function
- Front mounted Stereo Headphone jack
- Digital LED Tape Counter
- Selectable 'Memory' point
- Music Search feature (looks for a blank space between songs if sufficiently long)
- Intro Scan
- Blank Search
- Blank Skip
- Rear mounted, 8-pin port for optional Luxman 'wired' remote control (not available from us)

Luxman KX-106 Specifications:

Track format: 4 track / 2 channel
Heads: HEXALAM Play / Record head & Double-Gap, Ferrite Erase head
Freq Response w/ Dolby OFF: w/ Metal; 20-18,000 Hz +/- 3dB
w/ Chrome / CrO2; 30-16,000 Hz +/- 3dB @
w/ 'Normal'; 30-15,000 Hz +/- 3dB
Wow & Flutter (WRMS): 0.09% WRMS
S/N ratio w/ CrO2 / Metal tape:
>90db w/ *dbx
>65db w/ Dolby C
>59dB w/ Dolby B
>54dB w/ Dolby Off
Stereo Separation:  >35dB
Harmonic Distortion (THD):  <3% @ 0dB
Line Input Sensitivity: 150mV +/- 3dB
Output Level / Impedance for 'Normal' levels: 550mV +/- 3dB & 47k Ohms
Headphone Output Level / Impedance for 'Normal' levels: 65mV +/- 3dB & 8 Ohms
Fast Wind time (C-60): 120 sec.

Again, we have completely refurbished and thoroughly tested this deck. From a 'feature' standpoint, IT'S LOADED!!!
Again, though as mentioned earlier, it's "dbx" function is less than typical. It is about 9dB down. It's still usable, but you'll need to increase your volume substantially to play tapes encoded with dbx.
Cosmetically, it's in fabulous condition with really nothing to mention.
Great deck for just about any system. Also great for transferring your tape collection to CD, Hard-drive or MP3. Includes an 'e-copy / pdf download' of the Luxman K-109 owners manual which is similar enough to be fairly useful.
Measures 17.3" wide x 12" deep x 4.5" tall and weighs a ~12 lbs unpacked.
Comes with our 90 day limited warranty.
RESTORED / REFURBISHED / SERVICED LUXMAN KX-106
Cond. 8.5
SOLD 4/22/20
SHIPPING TO SHADRACH IN CANADA


(tape shown in photos not included. We do ship our decks with a  a 'pre-recorded' tape for playback, made on this 'specific' deck, and a tape to 'practice record' on.) 

(Above text, in it's entirety, property of www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright Information' page for details)

archived

 

 

    



NEW LISTING 12/15/2020
(Click on above thumbnails to enlarge photos)
  warranty
VINTAGE, FULLY SERVICED / REFURBISHED / RESTORED
TASCAM 'PROFESSIONAL SERIES' CASSETTE TAPE DECK
TASCAM 133
2-SPEED / 3-CHANNEL
#...0097
With DOLBY NR
MADE IN JAPAN!
Circa 1986-93
SOLD 12/16/2020
SHIPPING TO MICHAEL IN CALIFORNIA

ü Our technician has completely and EXTENSIVELY gone through and 'Certified' this unit which involves complete removal and disassembly of the entire transport, cleaning inside and out, DISASSEMBLING, cleaning and re-lubricating all internal mechanisms and the balance of efforts listed below.

ü Heads inspected for excessive wear (obviously we do this 'early on' as 'excessive' wear will usually negate any further restoration work). These have virtually NO visible wear to them.

ü Capstan motor spindle bushing re-lubed

ü Capstan burnished

ü Internal DC power supply tested

ü 'Reel drive' tires reconditioned installed for trouble-free service. (These are actually much more important to replace on this deck (and most) than the belts. Without these, the deck won't fast wind very well, and will likely 'eat tapes' as the 'take-up' reel won't turn properly)

ü New internal Drive (#42-340) and Counter (#42-470) belts installed for trouble-free service.

ü Rubber pinch rollers have been reconditioned

ü Both Flywheel 'belt surfaces' solvent cleaned

ü Bronze Flywheel bushings solvent cleaned

ü Both Flywheel thrust pads cleaned

ü Both Brake pads replaced

ü Entire flywheel assemblies re-lubed upon re-assembly

ü Heads have been cleaned and de-magnetized as well as the entire transport.

ü All original illumination working well

ü Head alignments and azimuth at 125Hz, 1kHz and 10kHz adjusted for 'peak performance' with O-Scope and original TEAC alignment tape

ü All internal pots, switches and controls cleaned and tested. Performing well now, with a bit of residual noise on one of the 'output' pots (fortunately, once 'output' pots on tape decks are 'set', they're usually not moved).

ü Both spindles in perfect alignment.

ü FF, REW, & Play transport functions all test perfectly and controls tested for 'positive / accurate' responsive.

ü 'Silicone Damped' Eject door operates smoothly following disassembly and re-lubing w/ silicone gel (must 'hold' down "Eject" button on this series until door releases)

ü Tape Counter Function tested

ü Dolby NR circuits / function tested

ü 'Memory / Zero Return' function tested

ü Heads are in great condition

ü Internal playback levels adjusted for even playback w/ alignment tape, Oscilloscope, and mVAC meter

ü Playback meters adjusted for 'playback' zero'd with factory test tone tape.

ü Internal Record amplifier channels adjusted for 'even output'

ü Pinch roller and heads all in GREAT condition!!!

ü Overall floor noise measured at >-60dB.

ü Speed adjusted internally to 100% accuracy BOTH directions, with 1kHz factory calibration tape and frequency counter (meaning 1kHz calibration tape plays back at 1000Hz +/- 1Hz)

ü Plays great and after adjustment, records AMAZINGLY well w/ following results;
With 1kHz recorded at 0dB / 1 7/8ips / w/o Dolby engaged; -1.25dB on Maxell UDXL-II / High Bias tapes
With DDD CD recorded at 0dB / 1 7/8ips / w & w/o Dolby engaged; -1 to -2 dB on Maxell UDXL-II / High Bias tapes

Bottom line is this deck sounds amazing for playback or recording (always make sure you're playing back 'good quality' tape recordings)
Total technician time to restore 8+ HOURS!

(Tech note: This model deck is "VERY SERVICEABLE" since it's in their 'Pro-Line'.
(Only remaining issues would be that REW is a bit noisy when nearing completion on most brands of tapes and Right output pot still a bit noisy when manipulated)
____________________________

The Tascam 133, Pro-Series, 2-SPEED, Stereo Cassette Tape Deck. Great deck for a 'project recording studio' as a 'mastering deck' (utilizing the 'High Speed'). With an original MSRP of over $1500, this was one of Tascams most expensive cassette decks ever. Of course also makes an incredible 'home system' deck and of also a great deck for doing your tape transfers if your tapes were recorded with no NR or with "Dolby B". Think of making some awesome 'new' recordings or 'mix tapes' (hey, it's 'the thing' again). This deck is a pleasure to use, and has a great 'feel' due to it's size and transport function. As this was made for 'video / radio' production it limits frequency response to 15k (per FCC limits), but makes up for it in robust build quality.

TASCAM 133 Features include:

- Two Speeds; 1 7/8 ips (normal) and 3.75 ips (HIGH Speed for best recording quality)
- Dolby B NR
- Rear I/O RCA jacks for connecting external dbx (or other NR) unit
- Heavy duty transport featuring 'oversized' capstan motor, and large flywheel
- "Soft touch / IC Logic control" tape transport
- Triple Analog VU Level Meters
- Digital Tape counter 
- Variable Output Level control (one of the most important features on a deck in our opinion. Allows you to match volume level of other sources, allows adjustment for 'best' pre-amp input to avoid distortion, allows you to change the volume of the deck if you have it located remotely from the pre-amp / receiver as I do, and many other applications)
- Real 'Potentiometer' Record level controls
- Memory Stop / Repeat Play and for 'Rewind' for counter
- Dual, Front mounted, 1/4", Microphone Jacks
- Front mounted, 1/4", Stereo Headphone jack w/ Level / volume control
- Multi-pin port on rear panel for any optional dbx NR unit (not included)
- Multi-pin port on rear panel for optional wired remote, (Tascam RC-133 remote not included)

TASCAM 133 Specifications:
 
Track format: 4 track / 3 channel
Motors: 2x 1x DC 'Reel', & 1x FG Servo Controlled DC 'Capstan'
Freq Response w/ Philips tape; 30Hz to 15kHz +/- 3dB @ 'High Speed'
Wow & Flutter (WRMS): as low as; 0.06% @ 'High Speed' & 0.04% @ Normal Speed
Tape Speeds: 1-7/8 ips & 3.75 ips
Harmonic Distortion / THD: <1.5% @ 1kHz & 0dB (High Bias Tapes)
Speed Accuracy: <+/-0.5% deviation either speed
Preset Bias frequency: 60kHz
Erasure: >65dB @ 1kHz
S/N ratio: >55db w/ Dolby dis-engaged (and High Bias Tapes @ either speed)
Adjacent Track Crosstalk: >45dB @ 1kHz (one of the best we've seen)
Fast Wind time: <90sec on C-60 Tapes)
  
Again, we have completely cleaned, refurbished / serviced and thoroughly tested this Tascam 133, 'PRO' cassette tape deck.
Makes fabulous recordings. Also great for transferring your no NR or Dolby B NR encoded tape collection to CD, Hard-drive or MP3 especially with the 'Tape EQ' selector for 'fine tuning' older tapes. Built very well! Due to it's size, overall feel, the 'input controls' and the 'transport control' this deck really is a blast to use. Would make a great '2-Track' deck to match your Tascam 234 'Multi-Track' if you have one. Sorry, but we did not get the rack ears so no covering over face plate ends on the sides. Comes with an e-copy / pdf download of the Tascam 133 owners / user / instruction manual and the service manual if the purchaser desires.
Measures 19" wide x 13.5" deep x 5.75" tall and weighs a heavy 20 lbs unpacked.
Includes our standard 90 day limited warranty. 
TASCAM 133
Cond. 8.5
SOLD 12/16/2020
SHIPPING TO MICHAEL IN CALIFORNIA

(tape shown in photos not included. We do ship our decks with a  a 'pre-recorded' tape for playback, made on this 'specific' deck, and a tape to 'practice record' on.) 

(Above text, in it's entirety, property of www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright Information' page for details)