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Purveyors of Electronic, Musical and Vintage goods from then, now and in between. 
Since 1982.

FULLY SERVICED & CALIBRATED
BACKED BY WARRANTY

STEREO REEL-TO-REEL TAPE
RECORDERS / DECKS / PLAYERS
  VINTAGE AND USED FOR SALE

 

 

Reel to reel tape decks / recorders: Refurbished-Restored w/ Warranty, Used Open Reel-to-Reels / R2R pre-owned, vintage stereo, open reel decks / tape recorders & players for sale. Great for media transfer to CD ROM or Hard Drive. Tape decks such as Otari MX-5050B-II, Pioneer RT-909, Sony TC, for sale, 4 track and other reel-reel decks & tape recorders for sale.

 


SOME SCARY THINGS TO BE AWARE OF AND WATCH OUT FOR
WHEN CONSIDERING A REEL TO REEL TAPE DECK . . .


                      

                   (
Click on above thumbnails to enlarge photos)

        SONY                                                                   SONY
          TC-366                                                                TC-3
55


These are a couple decks that we purchased from people who said it "works fine". They did actually FF, REW and move in Play mode, but that's where it ended. We knew they would need work, as inevitably all 20 to 40+ year old tape decks do have a number of things that need to be taken care of prior to being usable (typically 12-18 hours of tech time (sometimes as much as 24 and once we had one require 40 hours to do it justice) + parts), but we don't see too many in as bad a shape as these were (click above photos for details). Again these are decks that came from someone who said they "work fine"! Be careful out there when you're getting excited about bidding on that "good deal" on line @ eb_y, cra_gs_ist or other auction that say's "all functions test fine and deck works as it should". Yeah, right. Just FYI.

Email we just received from a guy that tried some 'on-line-auction seller' decks, "I am looking to resurrect my vintage SONY Reel To Reel Tapecorder,
MODEL TC353D. It was in storage since about 1987 when a 'friend' borrowed it, tried to switch speeds while in PLAY mode and jammed everything up. Last few years I've been buying some (4-5) models off ebay with most being listed as
'works' but upon receipt I found none have performed. Most of the others I have purchased all seem to have same problem...Can you help? I want to record in analog just like the old days. - T. Daley"



 
 

 
Above photo is of a Teac A-4010S having typical Main Capstan Belt change and Pinch Roller Arm re-lube operation.
Just FYI as typical of some of the work that is required to bring any 20+ year old Reel to Reel tape deck back to life, regardless of how well a person selling an old deck, that has not been recently serviced, may say it works! In fact the worst decks are commonly the units that are stated as having low hours, have been little or never used, or the worst offender "is NIB (New In Box)". While that may seem like a good thing, experience tells us that those are the "scariest" to purchase. They generally require the most work to bring back to a practical level of operation. Just like a car that has sat for many years not being used, similar "atrophy" happens to most electro-mechanical devices, ie; Turntables, Cassette Decks, 8-Tracks, VCR's, R2R's etc. Just FYI.


 

(*UNLESS OTHERWISE LISTED)
 



NOW OUR REEL TO REELTAPE DECKS / PLAYERS / RECORDERS:

 




 

         

          

       NEW LISTING
8/20/2021

(click on above thumbnails to enlarge photos)
CheckMarkSmall_web.jpg (792 bytes) warranty
RESTORED / REFURBISHED / FULLY SERVICED / WARRANTED
TECHNICS OPEN REEL TO REEL TAPE RECORDER
10.5" / 1/4" STEREO TAPE DECK
TECHNICS RS-1700 REEL TAPE DECK
#...564B
4-TRACK / 2-CHANNEL
DIRECT DRIVE
3-SPEED / 3 HEAD
*AUTO-REVERSE
5" / 7" / 10.5" (THE BIG ONES) REEL CAPACITY

"WORLD AC POWER"
  Circa 1977-80
MIJ
SOLD 9/7/2021
SHIPPING TO GORDON IN ILLINOIS


Our technician has EXTENSIVELY gone through and 'Certified' this unit.

Original issues were typical of most 40 year old reel to reel decks such as; Nicotine, sluggish start, iffy brakes, tape spillage, noisy / dirty switches and controls, tape bias out of whack, playback dropped off significantly on one side below 1kHz, recording 20db down or more on one or both sides, intermittent playback signal / levels. speed not accurate, tape path full of residue from tapes with 'sticky shed', pinch rollers 'out of round', bent / tweaked reel spindle tips, reel flange rub and more.

 We have completely and extensively gone through the mechanicals and electronics of this unit.

 We have invested more time into this deck than any other deck we have ever restored. Not because it was in bad shape, quite the contrary, but because there's so much to address on one of these Technics "RS" decks, and it's quite 'un-orthodox' relative to most other decks in function, design and electro-mechanical systems.

 Unique to Technics, all the Air Bellows were disassembled, and had their valves reversed as after 40 years, gravity causes them to sag the wrong way, thus making them ineffective for reducing tension arm movement. 

 Tape Lifters completely disassembled, cleaned and re-lubed

 Head block removed, burnished and de-mag'd

 Pinch-roller Lift Mechanism completely disassembled, cleaned and re-lubed

 E.O.T. arm completely disassembled, cleaned and re-lubed

 PR mechanism solenoid mounts adjusted and Pinch Roller tension increased

 Supply reel 'back tension' increased for both sides to reduce chance of 'tape walk off' (still may happen near very beginning of side B occasionally).

 Huge, capstan motor removed to facilitate a number of operations (Technics capstan motors are by far, larger than we have come across an any other reel to reel machines)

 Capstan / flywheel removed, bushings and axels cleaned and re-lubed

 Capstan cleaned

 Rubber pinch rollers both reconditioned on drill press, then cleaned with Rubber Re'nue 

 Capstan is Direct-drive so no belt required

Brand new Counter belts installed; #42-310 & #42-175

Typical 'Tape counter squeal' addressed by removing counter, disassembling and lubing main shaft

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

 Power supply CB checked, adjusted and verified to correct VDC which enables proper and certainly best performance from Cap motor, Playback and Record amp circuits

 *Back tension adjusted on both reel motors w/ vertical gram scale.

 HUGE Capstan motor removed, disassembled, cleaned

 All three motors test perfectly. Following above adjustments, Reel Start and Stop tested at beginning, middle and end of 7" and 10.5" tapes

 20-30 hours; Brakes were determined to have 'tired' springs and less than adequate brake shoe surface area. Original springs changed from 380 grams to 550 grams (about the max they could handle) and we replaced and added a third brake pad to each brake shoe to improve original braking tension to reduce 'tape spillage'. Anymore would cause another 'over-ride' spring to engage. Also all three Air Bellows had to be removed, disassembled, have their valves reversed, re-assembled and re-installed. Getting the brakes and tape tension arms to function close to properly was incredibly time consuming. Besides the actual work, there testing and re-testing with different sized reels, with different amounts of tape on each side. They are now performing at ~98% of original design.

    

 Brakes adjusted on fast wind modes on both 7.5 and fully loaded 10.5 reels from top speed, with tape at 95% either side

 Both spindles now in perfect alignment.

 We also adjusted the reel table heights.

 Internal pots, switches and controls cleaned and tested for noise-free function. (Requires extensive disassembly to access some switches). As this is not only an 'Auto-Reverse' deck, it also has 'Bi-Directional' recording, as well as three speeds, and dual, triple-position tape EQ / Type selectors. THERE'S A LOT of internal, PC mounted trim pots inside that have to be addressed with various test / alignment tapes.  Source / Tape switches were cleaned multiple times over a few days, but still had static when manipulated, so they were further removed, disassembled, had their internal contacts individually burnished, the re-assembled / re-installed.   Now operate normally. All of the 'switch / control cleaning operation' adds MANY HOURS to the restore of this unit.
 EXTENSIVE spent time on calibrating internal levels for Line Input, Playback Levels, Meter Levels (both mechanically and electronically), Record Levels, Record Bias and EQ for using Ampex GM456 and Maxell 35-90 UD tape to proper dBV levels. 

 Heads have little appreciable wear.

 15-20 Hours: BOTH direction Playback and Record Head alignment / azimuth was adjusted for peak performance with factory test tone tape and oscilloscope.  

 Following the above work and calibration, Recording tests performed with Ampex GM456 (again, same formulation as new ATR tape) and Maxell UD (Gold / Black) Tapes on both A & B sides.
Heres the results;
SIDE A:
GM 456 @ 7.5ips. 1kHz @ 0dB = -3dB L & -2dB R
GM 456 @ 15ips. 1kHz @ 0dB = -3.5dB L & -1.5dB R
SIDE B:
GM 456 @ 7.5ips. 1kHz @ 0dB = -2dB L & -2dB R
GM 456 @ 15ips. 1kHz @ 0dB = -4dB L & -1.5dB R
SIDE A:
MAXELL UDXL @ 7.5ips. 1kHz @ 0dB = -3dB L & -3.5dB R
MAXELL UDXL @ 15ips. 1kHz @ 0dB = -2.5dB L & -1.0dB R
SIDE B:
MAXELL UDXL @ 7.5ips. 1kHz @ 0dB = -7dB L & -5dB R
MAXELL UDXL @ 15ips. 1kHz @ 0dB = -3.5dB L & -1.5dB R

We then tested Ampex GM456 with Recorded program from "ddd" source extensively and deck performed well.

 
Floor noise measured at -56 dBV

 Unit detailed cosmetically

 This Technics RS-1700 functions, plays, and records VERY WELL (and 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). Total time investment in refurb / testing ~ 64 hours!!!
____________________________

Looks GREAT & is "Ready-to-go"! This is the first Technics RS-1700 Stereo Reel to Reel tape deck we ever had in over two and a half decades. Will play / record stereo 1/4" tapes on reels 5, 7 & 10.5" at speeds from 3.75, 7.5 and 15ips. This is one of the few reel to reel decks we get in that make it to our finished page. Great performer. This one made it through and all
* functions test great! If you're looking for a reel to reel deck to "actually use" here you go. Only about 30-50% of the used Reel decks out there can be "practically" restored to working order. Heads have no appreciable wear. Theyre in great shape! Following extensive service and alignment, both mechanically and electronically, recordings sound FANTASTIC on this unit now. Looks and sounds great too!
Again, we have completely gone through it and it's ready to go!

TECHNICS RS-1700 Features include:

- 4-Track / 2-Channel Stereo or 4-Track / 2-Channel Mono or 4-Track / 1-Channel Mono (compatible with standard / normal 4-Track / 2-Channel tape format, but will play 4-Track Mono tapes, and can play 'half-track / 2-Track Mono or Stereo tapes with decent results as well)
- 5" / 7" / 10.5" Reel Capacity
- 3-Heads for instant monitoring of tape levels while recording
- Three Motors and Direct Drive Capstan for trouble free performance (has a lot to do with it still being a viable piece of gear due to less rubber parts)
- MASSIVE Capstan motor and LARGE 34mm capstan
Technics unique "Isolated-Loop" Tape transport system (cuts Wow & Flutter to almost un-measurable amounts (0.018% WRMS, +- 0.035% DIN @ 38 cm/sec.)  eliminating smearing of top end frequencies on cymbals and the like, and creating realistic playback of tones such as Piano notes, a very difficult thing to accomplish)
- Quartz lock speed control for "Dead-On" accuracy

- Dual, Analog VU level meters
- Dual Position selector for VU meters
- Bi-Directional Recording

-
*Auto-Reverse* for Playback and Recording (when using tape with "transparent tape leaders" which as far as we know are "un-obtainium")
- Triple speeds at 15 ips / 38cms, 7.5 ips / 19cms and 3 3/4ips / 9.5 cms
- +/- 6% Pitch Control
- ''Soft Touch' / IC Logic Transport control
- Manual Reverse switches for changing direction with out flipping reels over 
- Spring loaded, Reel table locks (no need for rubber stoppers / clamps)
- Independent, Triple-Position Tape 'Bias' and 'Equalization' settings

- Separate & dual concentric mic and line level controls
- Source / Monitor selector (for instant monitoring of recording)
- Independent L & R record enable switches
- Variable Left & Right output level controls
- 4-Digit, Analog, tape counter corresponds to 'Real Time' Minutes / Seconds (when set to 15ips)
- Dual front mounted 1/4" Microphone inputs
- CUE Function for editing tape or if you're a 'wanna be DJ' looking to do the "scratch'in-'n-sniff'in" thing just like a turntable by grabbing and turning the reels back and forth by hand.
- Timer Start Option
- Multi-Pin port for optional (not available from us) Wired Remote Control, RP-9170
- DC power option for portable use as well
with optional RP-086 24-volt power pack (not included) (would require additional parts / accessories / effort and not sure why someone would want to use it portably anyway)
-True "WORLD AC POWER" allows unit to be operated on 50 or 60 Hz AC and will select voltages from 110v, 120v, 220v and 240 volts AC input.


TECHNICS RS-1700 Specifications:

Heads: 6
Motors: Capstan drive motor; Quartz control, Phase-locked, DC, Brushless, Servo, Direct-Drive
Reel base drive motors; 2x Tape-Tension controlled DC, Brushless, Direct-Drive
Tape Speed:
38cm/s (15ips), 19cm/s (7-1/2ips), 9.5cm/s (3-3/4ips)
Wow and flutter
**:
< 0.018% WRMS (38cm/s)
< 0.03% WRMS (19cm/s)
< 0.06% WRMS (9.5cm/s)
**We do occasionally detect some 'WOW' at the beginning of a tape, right after the machine is powered up. It seems to go away after the first tape is played for a bit. That could be due to the length of time it takes to spool up the immensely sized capstan motor flywheel in this deck.
Frequency response:
@ 38cm/s / 15 ips 30Hz to 30,000Hz 3dB w/ Record level at -10dB VU
@ 19cm/s / 7.5 ips 20Hz to 25,000Hz 3dB w/ Record level at -20dB VU
@ 9.5cm/s / 3.75 ips 20Hz to 15,000Hz w/ Record level at -20dB VU
S/N 1K & 3% THD: 66dB @ 38cm/s / 15 ips

66dB @ 19cm/s / 7.5 ips
64dB @ 9.5cm/s / 3.75 ips
THD @ 400Hz: <0.8% @ 0VU and <2.0% @ 185nWb/m+6dB
Channel separation:
>50dB
Erasing coefficient:
>65dB (rec level at +10dB and @ 1kHz)
Recording bias Frequency:
120kHz and referenced for 185nWb/m (originally set for Scotch 207, but we we adjusted from that for Ampex GM-456 tape or new ATR standard tape, which are around 350nWb/m)
2 VU-meters:
Analog to +6VU
Headphones; 8Ω, 1/4" / 6mm diam. jack 80mV @ 0.55V Line Output setting
Fast Wind Time w/ 2500 Tape & 10.5" reel:
~ 150 sec.


Again, due to the complexity of the Technics RS-1700 reel to reel tape deck, it required far more restoration / refurb / repair work than any deck we've had come through at 60+ hours!!! They're VERY complex machines, labor intensive machines to bring back to a useable level after 40 years.
Cosmetically the deck looks great overall. The only issues worth mentioning are; some light 'reel flange rub' on the left side, a small finish tic near one meter, some scuffs to the head cover and a few tiny, edge tics to the finish (see photos above).

Includes our normal accessory kit that includes a 'PlayBack Demo' made on the deck, a 7" plastic take-up reel, and a couple of other assorted 7" tapes to play with.
Includes a pdf / 'e-copy' download of the
TECHNICS RS-1700  Owners manual, and if desired, a copy of the TECHNICS RS-1700 (& RS-1520) Service manuals. Measures 18" wide x 17.5" deep x 10.25" high and weighs 57 lbs unpacked. Includes our standard 90 day limited warranty excluding any exceptions / issues previously mentioned.
Technics RS-1700, #564B Reel to Reel Tape Deck
Cond. 8.5++
$3999.
SOLD 9/7/2021
SHIPPING TO GORDON IN ILLINOIS


(Reels shown in photos are not included, but we sometimes / occasionally have them for sale. Inquire at time of order.
However, all of our decks will come with 2x tapes for testing 'Playback' and 'Recording' as well as a 7" 'take-up' reel, and RCA patch cables for connection to your system)

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

 

 

               

     

            NEW LISTING 7/15/2021
(click on above thumbnails to enlarge photos)
CheckMarkSmall_web.jpg (792 bytes) warranty
RESTORED / REFURBISHED / FULLY SERVICED / WARRANTED
TEAC OPEN REEL TO REEL TAPE RECORDER
10.5" / 1/4" STEREO TAPE DECK
TEAC A-6300 REEL TAPE DECK
#...0910
4-TRACK / 2-CHANNEL
2-SPEED / 3 HEAD
*AUTO-REVERSE
5" / 7" / 10.5" (THE BIG ONES) REEL CAPACITY
  Circa 1974-77
MIJ
for sale


Our technician has EXTENSIVELY gone through and 'Certified' this unit.

 We have completely and extensively gone through the mechanicals and electronics of this unit.

 Entire transport was disassembled down to the chassis, and every 'moving' mechanical part was cleaned, re-lubed and reassembled.

 Tape Lifters completely disassembled, cleaned and re-lubed

 Tape Lifters & Guide pins rotated 180 degrees to expose original, factory surface to tape (won't scratch surface of tape like worn pins will)

 Head block removed, burnished and de-mag'd

 Pinch-roller Lift Mechanism completely disassembled, cleaned and re-lubed

 E.O.T. arm completely disassembled, cleaned and re-lubed

 PR mechanism solenoid mounts adjusted

 Capstans / flywheels removed, bushings and axels cleaned and re-lubed

 Capstans burnished

 Rubber pinch roller reconditioned on lathe then cleaned with Rubber Re'nue

 Brand new, FRM14.4 MAIN drive belt installed

Brand new, #050 counter belt installed

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

 Power supply CB checked, adjusted and verified to correct VDC which enables proper and certainly best performance from Cap motor, Playback and Record amp circuits

 *Back tension adjusted via VR 18 and VR 19 A&B on both reel motors w/ vertical gram scale. * While we checked and adjusted where necessary, the back tension on the reel motors, we were only able to get 10.5" reels to play in reverse adequately with the "Reel Size" selector set for "small reels" ("small" position adds more reverse voltage to supply motor, thus reducing the chance of the tape 'walking' off the pinch roller edge).

 Reel motor start / run capacitors healthy

 5.0 hours; Capstan motor removed, disassembled, cleaned, installed new foam lube retainers and lubed with 30W (no, simply adding oil to the oil tubes does not work nor quiet down a motor after 40 years. It has to be disassembled). Runs quiet now.

 All three motors test perfectly. Following above adjustments, Reel Start and Stop tested at beginning, middle and end of 7" and 10.5" tapes

 Brakes adjusted on fast wind modes on both 7.5 and fully loaded 10.5 reels from top speed, with tape at 95% either side

 Both spindles now in perfect alignment.

 We also adjusted the reel table heights.

 Internal pots, switches and controls cleaned and tested for noise-free function.

 13.0 hours; EXTENSIVELY (about 13 hours on this step alone) spent time on calibrating internal levels for Line Input, Playback Levels, Meter Levels (both mechanically and electronically), Record Levels, Record Bias and EQ for using Ampex GM456 and Maxell 35-90 UD tape. (BTW: if you're ever working on an "A-6300", the original service manual does not give you your starting point for "input" calibration, and you'll need to get that from the SM for the TEAC A-2340R or other deck that includes. We had to research many service manuals to get the information to start correctly)

 Heads have no appreciable wear.

 4.5 Hours: BOTH direction Playback and Record Head alignment / azimuth was adjusted for peak performance with factory test tone tape and oscilloscope.

 Recording tests performed with Ampex GM456 and Maxell UD (Gold / Black) Tapes.
Heres the results;

GM 456 @ 7.5ips. White Noise @ 0dB = -5dB L & -1.5dB R with minor artifacts
GM 456 @ 7.5ips. 1kHz @ 0dB = -5dB L & -1.5dB R with minor artifacts
GM 456 @ 7.5ips. White Noise @ -10dB = -10 (zero dB loss) dB L & R with minor artifacts
GM 456 @ 7.5ips. Recorded program from "ddd" source @ 0dB sounds great. Tape is actually a bit 'punchier' then source and brighter (in a good way)


 Floor noise measured at -56 dBV

 Unit painstakingly detailed cosmetically. Face removed and re-burnished, then cleaned with cleaning wax.

 Veneer chips repaired to walnut side panels and oiled with Lemon oil.

 New felt added to bottom edges of walnut side panels

 This TEAC A-6300 functions, plays, and records VERY WELL (and 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).  (Total time investment in refurb / testing ~ 34.5+ hours).

 Face is made of beautiful brushed Stainless Steel. Deck looks and following it's extensive service, now works great! 
____________________________

Looks GREAT & is "Ready-to-go"! This is the firstTEAC A-6300 Stereo Reel to Reel tape deck we ever had in over two and a half decades. Will play / record stereo 1/4" tapes on reels 5, 7 & 10.5". This is one of the few reel to reel decks we get in that make it to our finished page. Great performer. This one made it through and all
* functions test great! If you're looking for a reel to reel deck to "actually use" here you go. Only about 30-50% of the used Reel decks out there can be "practically" restored to working order. Heads have no appreciable, visible wear, check the record test results above, evidence theyre in fine shape! Following extensive service and alignment, both mechanically and electronically, recordings sound FANTASTIC on this unit now. Looks and sounds great too!
Again, we have completely gone through it and it's ready to go!

TEAC A-6300 Features include:

- 4-Track / 2-Channel Stereo or 4-Track / 2-Channel Mono or 4-Track / 1-Channel Mono
- 5" / 7" / 10.5" Reel Capacity (compatible with standard / normal 4-Track / 2-Channel tape format)
- 3-Heads for instant monitoring of tape levels while recording (Records in Forward direction)
- Three Motors for trouble free performance (has a lot to do with it still being a viable piece of gear due to less rubber parts)
- Dual, Analog VU level meters
- Dual Position selector for VU meters

-
*Auto-Reverse* for Playback (when using tape with "auto-reverse" sensing foil) (Forward Recording, with forward & reverse playback)
- Dual speeds at 7.5 ips / 19cms and 3 3/4ips / 9.5 cms
- ''Soft Touch' / Solenoid Drive Touch Transport control and 'Power Brake' tape handling
-
*Manual Reverse switches for changing direction with out flipping reels over 
- Spring loaded, Reel table locks (no need for rubber stoppers / clamps)
- Independent Tape 'Bias' and 'Equalization' settings
- Separate & dual concentric mic and line level controls
- Source / Monitor selector (for instant monitoring of recording)
- Independent L & R record enable switches
- Left & Right output level controls
- 4-Digit, Analog, tape counter
- 'Counter Repeat Function
- Dual front mounted 1/4" Microphone inputs
- Variable output level controls for each channel
- Real Wood veneer side panels


TEAC A-6300 Specifications:

Heads: 4 (Fwd record, Fwd erase, fwd-play, rev-play)
Motors: Capstan drive motor; 4/8 pole, Hysteresis Synchronous
Reel base drive motors; 2x 6-pole eddy current type
Tape Speed:
19cm/s (7-1/2ips), 9.5cm/s (3-3/4ips) 0.5%
Wow and flutter:
< 0.20% WRMS (19cm/s)
< 0.18% WRMS (9.5cm/s)
Frequency response:
@ 19cm/s / 7.5 ips 40Hz to 24,000Hz 3dB)
@ 9.5cm/s / 7.5 ips 40Hz to 16,000Hz 3dB)
Crosstalk:
>45dB @ 125Hz
Channel separation:
>45dB @ 1kHz
Erasing coefficient:
>65dB
Recording bias Frequency:
100kHz
2 VU-meters:
Analog to +6VU
Output Level Reference / Maximum:
Line; 300mV / 10
Headphones; 8Ω, 1/4" / 6mm diam. jack
Fast Wind Time w/ 1800 Tape & 10.5" reel:
~ 160 sec.


This is the same deck that our senior tech has owned for years, so he was very familiar with it when performing the service work.

Includes our normal accessory kit that includes a 'PlayBack Demo' made on the deck, a 7" plastic take-up reel, and a couple of other assorted 7" tapes to play with.
Includes a pdf / 'e-copy' download of the TEAC A-6300 Owners manual, and if desired, a copy of the TEAC A-6300 Service manual. Measures 19.75" high x 17.5" wide x 8.5" deep and weighs 52 lbs unpacked. Includes our standard 90 day limited warranty.
TEAC A-6300, #0910 Reel to Reel Tape Deck
Cond. 8.5

$2499.

(Reels shown in photos are not included, but we sometimes / occasionally have them for sale. Inquire at time of order.
However, all of our decks will come with 2x tapes for testing 'Playback' and 'Recording' as well as a 7" 'take-up' reel, and RCA patch cables for connection to your system)

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

 

 

         

 

            NEW LISTING 7/15/2021
(click on above thumbnails to enlarge photos)
CheckMarkSmall_web.jpg (792 bytes) warranty
RESTORED / REFURBISHED / FULLY SERVICED / WARRANTED
PIONEER REEL TO REEL TAPE DECK  
PIONEER RT-701 / RT701
 1/4" STEREO
4-TRACK / 2-CHANNEL
2-SPEED / 3 HEAD
3" - 7" REEL CAPACITY
#...3003
  Circa 1977-85

MIJ
for sale


Our technician has EXTENSIVELY gone through and 'Certified' this unit.

"
Original condition was 6-9dB low and slightly distorted recordings L&R. Speed after warm-up was decent at 1007Hz. Bias pots intermittent. PR & counter belt melted. PB level un-even by 4dB and both down. EOT mechanism sluggish, as well as typical "40-year, no maintenance / 'as-found' condition"

 We have completely and extensively gone through the mechanicals and electronics of this unit.

 4x #2SC1344, "Black legged" transistors replaced on Line-IN / Mic-IN PCB which cured distortion issues on recording and enabled levels to be adjust properly

 Internal mechanisms, disassembled, cleaned and re-lubed

 Brakes extensively adjusted on fast wind modes also.

 Reel motor torque adjusted to correct force in grams. All three motors test perfectly.

 We also adjusted the reel table heights. Both spindles in perfect alignment and run 'true'

 We also installed a new counter belt for trouble-free service.

 All External and Internal pots, switches and controls cleaned and tested for noise-free function.

 Rubber pinch roller has been replaced with brand new

 Cntr belt replaced with brand new

 Capstan burnished

 We adjusted the internal playback levels for standard 700Hz @ 0dB (VR103/V4104) as well as the record levels and both VU meters (VR101/VR102 on PB PCB #RWF-081) mechanically and electronically w/ factory test tone tapes.

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

 Head-stack alignment / azimuth has been checked for peak performance with factory test tone tape out to 15khz and oscilloscope.

 Heads have typical, normal wear and are all in fine condition with hundreds of hours left.

 Both level meters adjusted for even playback level w/ factory test tone tape.

 Both table spindles run 'true' with no run-out

 New VU meter illumination lamps installed

 Bias adjusted (VR301, VR302, VR303, VR304 on OSC PCB #RWR-059) for Ampex GM-456 Grand Master tape (same as modern ATR formulation)

 Recording tests performed with Ampex GM456 and Maxell UD (Gold / Black) Tapes.
Heres the results;

GM 456 @ 7.5ips. 1kHz @ 0dB = +3.0 dB L&R in STD+STD positions with very little artifacts
GM 456 @ 7.5ips. 1kHz @ 0dB = 0 dB L&R in LH+LH positions with very little artifacts
GM 456 @ 7.5ips. 1kHz @ 0dB = +0.5 dB L&R in STD+STD positions
GM 456 @ 7.5ips. 1kHz @ 0dB = -0.25 dB L&R in LH+LH positions
GM 456 @ 7.5ips. Recorded program from "ddd" source was "AWSOME". Best in "LH" position. "STD" was a bit too 'bright'
Maxell UD @ 7.5ips. 1kHz @ 0dB = -1 dB L&R in STD+STD positions with very little artifacts
Maxell UD @ 7.5ips. 1kHz @ 0dB = -2.5 dB L&R in LH+LH positions with very little artifacts
Maxell UD @ 7.5ips. White Noise @ 0dB = +1.5 dB L & -0.5 dB R in STD+STD positions
Maxell UD @ 7.5ips. White Noise  @ 0dB = -1 dB L & -2.5 dB Rin LH+LH positions
Maxell UD @ 7.5ips. Recorded program from "ddd" source was "Great". Best in "LH" position. "STD" was again, a bit too 'bright'

Pretty damn good numbers for a 40 year old classic!


 Floor noise measured at >-60dBm

 Both internal speed pots adjusted to 100% accuracy on 3.75ips and 7.5ips speeds  independently (with pitch control zero'd) (meaning that our 'official' 1000Hz test tape now plays back at 1000Hz +/- 1Hz w/ pitch control at 12:00 position).

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.  

 (Total time investment in refurb / testing ~ 19.5 hours).

Original face panel is made of beautiful brushed aluminum, and is in great condition NO marks from ever being rack mounted. Sheet metal bonnet and rear panel as well as the original finish all in near perfect shape.
Deck looks and works great!
 
____________________________

Looks GREAT & is "Ready-to-go"! The very sought after Pioneer RT-701 Stereo Reel to Reel tape deck. Will play / record stereo 1/4" tapes on reels up to 7". This is one of the few reel to reel decks we get in that make it to our finished page. Great performer. If you're looking for a reel to reel deck to "actually use" here you go. Only about 30-50% of the used Reel decks out there can be "practically" restored to working order. This one made it through and all functions test great! Looks and sounds great too! We have completely gone through it. 

Pioneer RT-701 Reel to Reel Features include:


- 3 Heads for instant monitoring of tape levels while recording
- 3 Motors for trouble free performance (has a lot to do with it still being a viable piece of gear due to less rubber parts)
- Variable pitch control
- Dual speeds at 7.5 ips / 19cms and 3 3/4ips / 9.5 cms
- Spring Loaded reel spindles. No need for rubber reel holders / clamps
- Separate & dual mic and line level controls
- Dual 1/4" front mounted mic inputs
- Source / Monitor selector
- Independent L & R record enable switches for doing "sound-on-sound"
- Left & Right output level controls
- Dual vertical analog VU level meters
- Dual position tape Speed / EQ selector
- End of tape shut off function (Auto-Stop)
- Dual front mounted 1/4" Microphone inputs
- Variable output level controls for each channel 
- RCA I/O's 


Pioneer RT-701 Reel to Reel Specifications as follows:

Track Format: 4-Track / 2-Channel stereo
Heads:
4 (record, erase, fwd-play, rev-play)
Motors: Direct-drive 3 motors. Capstan: FG System / AC Servo
Reel: 6-pole, inner rotor induction type

Operation System: Solenoid Drive / transport selection
Tape Speed: 3-3/4 and 7-1/2 ips
Reel Size: Up to 7"
Wow and flutter: < 0.05% WRMS (7-1/2 ips / 19cm/s)
Signal to noise ratio: >58dB
Frequency response: 7-1/2 ips = 20Hz to 28kHz weighted.
& 3-3/4 ips = 20Hz to 20kHz weighted.
Crosstalk: >50dB
Channel separation: >50dB
Input Impedance sensitivity / Impedance: 50mV / 100kΩ
Input Impedance sensitivity / Impedance: 0.25mV / 27kΩ
Pitch-control: +/- 6%
2 VU-meters: dB (+3 to -20)
Output Level at 0-VU: 450mV / 50k Ohms
Recording bias frequency: 125kHz.
Rewind Time w/ 1200 Tape: ~100 sec

Following the above stated bench work / testing, our technician has 'Certified' this deck and it is an great performer sonically and mechanically. As stated earlier we have completely gone through it cleaning, lubing, adjusting, demagnetizing and testing everything. Plays and records perfectly. 701's are direct drive thus requiring no drive belt to wear out. The only belt to wear out or break is the counter belt and this one was replaced with a brand new one. (Since the 701 does not use the counter for "Auto-Stop" sensing, if you ever break the counter belt, the deck will still run fine, unlike some other high-end decks. Just FYI)
The Pioneer RT-70X series is considered by us (and we've heard a few others out there stating this as well) to be about the most durable, best built, least stuff to break reel to reel ever made by anyone. If you've been inside as many decks as we have, you can appreciate how simply the RT-701 is built inside. There's just none of the 'Rube Goldberg' mechanisms that most (even some later model machines) have.
Thick & solid brushed aluminum face plate in great condition. Great deck for adding QUALITY reel to reel capability to your audio system (vintage or otherwise), or for archiving / transferring your tape collection to another format such as CD, or hard-drive. Unit includes  an 'e' pdf copy of Pioneer RT-701 owners / users manual. Measures 19" wide x 14.5" deep x 9.5" high and weighs 44 lbs unpacked. Includes our standard 90 day limited warranty.
(Reels & tape shown in photos not included. All are usually available separately if you need them)
This is THE SECOND BEST recording / performing deck we EVER have finished. "The planets all aligned again" and our tech was really able to 'dial' this one in as well!
PIONEER RT-701, #3003 Reel to Reel Tape Deck
Cond. 8.5++

$1799.

(Reels shown in photos are not included, but we sometimes / occasionally have them for sale. Inquire at time of order.
However, all of our decks will come with 2x tapes for testing 'Playback' and 'Recording' as well as a plastic, 7" 'take-up' reel, and RCA patch cables for connection to your system)

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

 

 

 

     

    


NEW LISTING 9/10/2021
(click on above thumbnails to enlarge photos)
CheckMarkSmall_web.jpg (792 bytes) warranty
RESTORED / REFURBISHED / FULLY SERVICED / WARRANTED
AKAI OPEN REEL TO REEL TAPE RECORDER
AKAI MODEL GX-4000D
 1/4" 4-TRACK / 2-CHANNEL
 STEREO
3-HEAD / 2-SPEEDS
3" - 7" REEL CAPACITY
VERY HARD "GLASS X'TAL FERRITE" HEADS
OPEN REEL TO REEL
TAPE DECK
#...1372
Circa 1975-78

for sale

Original observations / conditions:
"Very dirty outside. Noticeable wear to tape guide pins. Playback un-even from L to R. Tape 'skews' off pinch roller after a few moments of playback regardless of tape progress. Records several dB down. "Rattle / noise" when motor running, found to be too much longitudinal movement in capstan / flywheel. Transport cam dogs in good shape."

Our technician has EXTENSIVELY gone through and 'Certified' this unit.

 We have completely and extensively gone through the mechanicals and electronics of this unit.

 Transport 'cam dogs' on this deck are the 'later' versions and resistant to deterioration (MUCH UNLIKE most other Akai decks)

 Entire transport was disassembled down to the chassis, and every mechanical part was removed / disassembled, cleaned, re-lubed with synthetic lube and reassembled.



 pinch-roller mechanism completely disassembled, cleaned and re-lubed

 Capstan & flywheel removed, bushings and axel cleaned and re-lubed

 Flywheel repositioned on capstan axle as it had moved and was allowing adjusting nut to touch flywheel before the ball bearing did.

 Flywheel thrust bracket removed, bearing surface cleaned and re-lubed, then reinstalled and adjusted.

 Capstan burnished

 Internal drive wheels / tires removed, and resurfaced

 Drive motor inspected, cleaned and re-lubed

 Knurled drive pulley cleaned of old rubber residue

 Pinch roller removed, resurfaced / reconditioned, and lubed prior to re-install

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

 Brake pads cleaned / reconditioned

 Brakes adjusted on fast wind modes also.

 Back tension adjusted on both reel tables.

 Brand new, FR 13.4 'Main' drive / capstan belt installed

 Brand new 'Tape Counter' belt installed

 All transport functions now test perfectly, following above adjustments, Reel Start and Stop tested at beginning, middle and end of 7" tapes

 Internal pots, switches and controls cleaned and tested for noise-free function.

 Both spindles in perfect alignment, with minimal wobble and no missing fins

 We also adjusted the reel table heights.

 Meter lamps replaced with new #25-500

 Heads cleaned and de-magnetized (as well as entire transport) and are in great shape as well, with many years of performance left in them.

 Mic / Line control pots cleaned for static free performance

 Deck has been fully calibrated to factory manual specs adjusting PB levels, Meter adjustments, Bias / Frequency adjustments (VC1& VC2), and internal record levels, tested, with Nortronics, Panasonic, Sony, Soundcraft, STL, TEAC and BRL alignment / test tapes (see resulting record level listed below). Biased best for Ampex GM456 / ATR Reference tape and records on Maxell UD also very well. Best performance when recording at -2dB (most manufactures test at -20dB).

 Speed tested to .996% accuracy (1kHz = 1.004kHz)

 Floor noise measured at >-74dBu following above procedures

 Following the above work and calibration, Recording tests performed with Ampex GM456 (again, same formulation as new ATR tape) and Maxell UD (Gold / Black) Tapes.
Heres the results;
GM 456 @ 7.5ips. 1kHz @ 0dB = +3dB L & R (best to record @ -3dB on 'Source')
GM 456 @ 7.5ips. White Noise @ 0dB = -2dB L & R (engaging "EQ" adds +5dB L&R)

We then tested Ampex GM456 with Recorded program from "ddd" source extensively and deck performed well.
I know that a 'copy' CANNOT sound better than the source, but I swear that repeated recordings seemed to be "fuller" sounding than the 'source' material.

 This Akai GX-4000D functions, plays, and records perfectly (and 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).  (Total time investment in refurb / testing ~ 15 hours).  
Tech noted on work sheet; "Transport on this one is 'LIKE NEW'! inside"
____________________________

Looks GREAT & is "Ready-to-go"! Will play / record stereo 1/4" tapes on reels 3, 5 & 7". This is one of the few reel to reel decks we get in that make it to our finished page. Great performer. If you're looking for a reel to reel deck to "actually use" here you go. Only about 25% of the used Reel decks out there can be "practically" restored to working order. This one made it through and all functions test great! Looks and sounds great too! Deck looks good with hardly anything to make mention of cosmetically. Maybe a bit of discoloration to the face metal if the light is angled just right, and a couple little 'tics' near the capstan. And again, following the extensive refurbishment listed above, the deck works and sounds great!

Akai GX-4000D Features include:

- 4-Track / 2-Channel
- One-Micron Gap Head
- 3*, 5*", & 7" Reel Capacity (*compatible with standard 4-Track / 2-Channel tape format)
- 3 Heads for instant monitoring of tape levels while recording (enables us to get the 'record head' alignment VERY exact with oscilliscope)
- VERY HARD, "Glass X'TAL Ferrite" Heads
- Dual speeds at 7.5 ips / 19cms and 3 3/4ips / 9.5 cms
- Separate & dual concentric mic and line level controls
- Source / Monitor selector (for instant monitoring of recording)
- "Sound-on-Sound" for layering multiple tracks. From the owners manual, "For transfer of previously recorded material from one track to another accumulating as many individual recordings on a single track as is desired".
- Track Selector for Stereo / 2-Channel, or Mono / 4 Channels
- Independent L & R record enable switches for doing "sound-on-sound (S.O.S.)"
- Tape EQ Selector
- Tape Type Selector
- Auto-Stop Function
- Mechanical 'Pause' Control
- Left & Right output level controls
- Dual Analog level meters
- Spring-Loaded Spindle Locks on Reel Tables (no need for rubber stoppers / clamps)
- 4-Digit Analog tape counter
- Dual front mounted 1/4" Microphone inputs
- Front mounted 1/4" Headphone jack


Akai GX-4000D Specifications:
Motor:
4-pole induction 1-speed motor @ 1800 RPM (utilizes speed / capstan sleeve to change speeds)
Reel capacity:
Up to 7" reel
Heads (3):
One Erase Head, One Micron-Gap, GX Playback / One Micron-Gap GX, Record Head
Track system:
4-track 2-channel stereo / monaural system
Tape Speed:
3 , and 7 Inches Per Second +/- 2% (again, we tested this deck after our refurbishment at 1k=1004, which is 0.004%!)
Wow & Flutter: 
 <0.08% RMS (7.5 ips) (way better than the MK-II which is "0.15%!!!)
<0.12% RMS @ 3-3/4 ips
Frequency Response:
30-24,000 Hz 3dB at 7 IPS (w/ extended range tape) (1kHz better than the MK-II !!!)
30-16,000 Hz 3dB at 3 IPS (w/ extended range tape)
Erase Ratio:
>70 dB
Cross Talk:
>70 dB mono and >50dB stereo
Distortion:
<1% at 1kHz & 0 VU
S/N:
>60 dB @ 7.5 ips (4dB better than the MK-II !!!)
Input Levels:
Mic - >0.25 mV @ 600 Ohms (50% less required than the MK-II !!!)
Line - >70 mV @ 200k Ohms
Output Levels (Line Out):
0.775V utilizing a recorded level of '0' dB @ 250Hz
Output Levels (Headphone): 100mV @ 8 Ohms
Record Bias Freq:
100kHz +/- 5%
Fast Wind Times:
~200 seconds using 1200 feet tape
Recording / Playback Times:
4 hrs stereo recording @ 7.5 IPS w/ 1200 ft. Tape


As stated earlier we have completely gone through it cleaning, lubing, adjusting, demagnetizing and testing everything. Plays and records perfectly, AGAIN, records at essentially, +3dB (your results will depend on technique and exact tapes utilized).
Deck looks VERY good, and again, following the extensive refurbishment listed above, the deck works and sounds great!
These are great machines from Akai, and this is one of the 50% of Akai's that have the 'later / improved' 'transport cam dogs' that resist disintegration (our tech noted that the transport cams in this unit are "like new"). Comes with proper, 7.5ips speed sleeve.
Includes a pdf / 'e-copy' download of the Akai GX-4000D Owners manual and Brochure, and if desired, a copy of the Akai GX-4000D Service manual. Measures 16" wide x 7.75" deep x 13.5" high and weighs 25 lbs unpacked. Includes our standard 90 day limited warranty.
Akai GX-4000D Reel to Reel Tape Deck
Cond. 8.5
++
$1599.

(Reels shown in photos are not included, but we sometimes / occasionally have them for sale. Inquire at time of order.
However, all of our decks will come with 2x tapes for testing 'Playback' and 'Recording' as well as a plastic, 7" 'take-up' reel, and RCA patch cables for connection to your system)

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

 

 

         

NEW LISTING 9/16/2021
(click on above thumbnails to enlarge photos)
CheckMarkSmall_web.jpg (792 bytes) warranty
RESTORED / REFURBISHED / FULLY SERVICED / WARRANTED
AKAI OPEN REEL TO REEL TAPE RECORDER
AKAI MODEL GX-4000D
 1/4" 4-TRACK / 2-CHANNEL
 STEREO
3-HEAD / 2-SPEEDS
3" - 7" REEL CAPACITY
VERY HARD "GLASS X'TAL FERRITE" HEADS
OPEN REEL TO REEL
TAPE DECK
#...9379
Circa 1975-78

for sale

Original observations / conditions:
"Very dirty outside. Stiff PR arm. Playback un-even from L to R. Head cover pins 'splayed'. Missing left idler wheel mechanism. Transport cam dogs in good shape. Typically dirty & intermittent pots / controls."

Our technician has EXTENSIVELY gone through and 'Certified' this unit.

 We have completely and extensively gone through the mechanicals and electronics of this unit.

 Transport 'cam dogs' on this deck are the 'later' versions and resistant to deterioration (MUCH UNLIKE most other Akai decks)

 Entire transport was disassembled down to the chassis, and every mechanical part was removed / disassembled, cleaned, re-lubed with synthetic lube and reassembled.



 pinch-roller mechanism completely disassembled, cleaned and re-lubed

 Capstan & flywheel removed, bushings and axel cleaned and re-lubed

 Flywheel repositioned on capstan axle as it had moved and was allowing adjusting nut to touch flywheel before the ball bearing did.

 Flywheel thrust bracket removed, bearing surface cleaned and re-lubed, then reinstalled and adjusted.

 Capstan burnished

 Internal drive wheels / tires removed, and resurfaced


 Reel hubs and clutches removed, disassembled, cleaned and lubed w/ heavy wt lube to eliminate reel 'chatter'

 Drive motor inspected, cleaned and re-lubed

 Knurled drive pulley cleaned of old rubber residue

 Pinch roller removed, resurfaced / reconditioned, and lubed prior to re-install

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

 Brake pads cleaned / reconditioned

 Brakes adjusted on fast wind modes also.

 Back tension adjusted on both reel tables.

 Brand new, FR 13.4 'Main' drive / capstan belt installed

 Brand new, #048 'Tape Counter' belt installed

 'Tape Counter' disassembled and cleaned to eliminate typical 'counter rattle' noise.

 All transport functions now test perfectly, following above adjustments, Reel Start and Stop tested at beginning, middle and end of 7" tapes

 Internal pots, switches and controls cleaned and tested for noise-free function.

 Both spindles in perfect alignment, with minimal wobble and no missing fins

 We also adjusted the reel table heights.

 Meter lamps replaced with new #25-500

 Heads cleaned and de-magnetized (as well as entire transport) and are in great shape as well, with many years of performance left in them.

 Mic / Line control pots cleaned for static free performance

 Deck has been fully calibrated to factory manual specs adjusting PB levels, Meter adjustments, Bias / Frequency adjustments (VC1& VC2), and internal record levels, tested, with Nortronics, Panasonic, Sony, Soundcraft, STL, TEAC and BRL alignment / test tapes (see resulting record level listed below). Biased best for Ampex GM456 / ATR Reference tape and records on Maxell UD also very well. Best performance when recording at -3dB (most manufactures test at -20dB).

 Speed tested to .995% accuracy (1kHz = 1.005kHz)

 Floor noise measured at >-74dBu following above procedures

 Following the above work and calibration, Recording tests performed with Ampex GM456 (again, same formulation as new ATR tape) and Maxell UD (Gold / Black) Tapes.
Heres the results;
Maxell UDXL @ 7.5ips. 1kHz @ 0dB = L=-4dB L & R = -1.0dB (best to record @ -3dB on 'Source')
Maxell UDXL @ 7.5ips. White Noise @ 0dB =
= L=-3dB L & R = -0.5dB  (engaging "EQ" adds +5dB L&R)
GM 456 @ 7.5ips. 1kHz @ 0dB = L=-2dB L & R = +1.5dB (best to record @ -3dB on 'Source')
GM 456 @ 7.5ips. White Noise @ 0dB =
= L=-2dB L & R = -0.5dB  (engaging "EQ" adds +5dB L&R)

We then tested Ampex GM456 with Recorded program from "ddd" source extensively and deck performed well.
I know that a 'copy' CANNOT sound better than the source, but I swear that repeated recordings seemed to be "fuller" sounding than the 'source' material.

 This Akai GX-4000D functions, plays, and records perfectly (and 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).  (Total time investment in refurb / testing ~ 15+ hours).
____________________________

Looks GREAT & is "Ready-to-go"! Will play / record stereo 1/4" tapes on reels 3, 5 & 7". This is one of the few reel to reel decks we get in that make it to our finished page. Great performer. If you're looking for a reel to reel deck to "actually use" here you go. Only about 25% of the used Reel decks out there can be "practically" restored to working order. This one made it through and all functions test great! Looks and sounds great too! Deck looks good with a few minor cosmetic issue; A bit of discoloration to the face metal if the light is angled just right, a minor dent in the face panel about 'mid-deck', a bit of dry cracking on one of the rubber reel trims, and the back edges of the side panel, wood grain, vinyl is peeling a bit. Nothing too distracting. And again, following the extensive refurbishment listed above, the deck works and sounds great!

Akai GX-4000D Features include:

- 4-Track / 2-Channel
- One-Micron Gap Head
- 3*, 5*", & 7" Reel Capacity (*compatible with standard 4-Track / 2-Channel tape format)
- 3 Heads for instant monitoring of tape levels while recording (enables us to get the 'record head' alignment VERY exact with oscilliscope)
- VERY HARD, "Glass X'TAL Ferrite" Heads
- Dual speeds at 7.5 ips / 19cms and 3 3/4ips / 9.5 cms
- Separate & dual concentric mic and line level controls
- Source / Monitor selector (for instant monitoring of recording)
- "Sound-on-Sound" for layering multiple tracks. From the owners manual, "For transfer of previously recorded material from one track to another accumulating as many individual recordings on a single track as is desired".
- Track Selector for Stereo / 2-Channel, or Mono / 4 Channels
- Independent L & R record enable switches for doing "sound-on-sound (S.O.S.)"
- Tape EQ Selector
- Tape Type Selector
- Auto-Stop Function
- Mechanical 'Pause' Control
- Left & Right output level controls
- Dual Analog level meters
- Spring-Loaded Spindle Locks on Reel Tables (no need for rubber stoppers / clamps)
- 4-Digit Analog tape counter
- Dual front mounted 1/4" Microphone inputs
- Front mounted 1/4" Headphone jack


Akai GX-4000D Specifications:
Motor:
4-pole induction 1-speed motor @ 1800 RPM (utilizes speed / capstan sleeve to change speeds)
Reel capacity:
Up to 7" reel
Heads (3):
One Erase Head, One Micron-Gap, GX Playback / One Micron-Gap GX, Record Head
Track system:
4-track 2-channel stereo / monaural system
Tape Speed:
3 , and 7 Inches Per Second +/- 2% (again, we tested this deck after our refurbishment at 1k=1004, which is 0.004%!)
Wow & Flutter: 
 <0.08% RMS (7.5 ips) (way better than the MK-II which is "0.15%!!!)
<0.12% RMS @ 3-3/4 ips
Frequency Response:
30-24,000 Hz 3dB at 7 IPS (w/ extended range tape) (1kHz better than the MK-II !!!)
30-16,000 Hz 3dB at 3 IPS (w/ extended range tape)
Erase Ratio:
>70 dB
Cross Talk:
>70 dB mono and >50dB stereo
Distortion:
<1% at 1kHz & 0 VU
S/N:
>60 dB @ 7.5 ips (4dB better than the MK-II !!!)
Input Levels:
Mic - >0.25 mV @ 600 Ohms (50% less required than the MK-II !!!)
Line - >70 mV @ 200k Ohms
Output Levels (Line Out):
0.775V utilizing a recorded level of '0' dB @ 250Hz
Output Levels (Headphone): 100mV @ 8 Ohms
Record Bias Freq:
100kHz +/- 5%
Fast Wind Times:
~200 seconds using 1200 feet tape
Recording / Playback Times:
4 hrs stereo recording @ 7.5 IPS w/ 1200 ft. Tape


As stated earlier we have completely gone through it cleaning, lubing, adjusting, demagnetizing and testing everything. Plays and records perfectly, AGAIN, records at essentially, +3dB (your results will depend on technique and exact tapes utilized).
Deck looks VERY good, and again, following the extensive refurbishment listed above, the deck works and sounds great!
These are great machines from Akai, and this is one of the 50% of Akai's that have the 'later / improved' 'transport cam dogs' that resist disintegration (our tech noted that the transport cams in this unit are "like new"). Comes with one of our 7.5ips speed sleeves.
Includes a pdf / 'e-copy' download of the Akai GX-4000D Owners manual and Brochure, and if desired, a copy of the Akai GX-4000D Service manual. Measures 16" wide x 7.75" deep x 13.5" high and weighs 25 lbs unpacked. Includes our standard 90 day limited warranty.
Akai GX-4000D Reel to Reel Tape Deck
Cond. 8.5
++
$1499.

(Reels shown in photos are not included, but we sometimes / occasionally have them for sale. Inquire at time of order.
However, all of our decks will come with 2x tapes for testing 'Playback' and 'Recording' as well as a plastic, 7" 'take-up' reel, and RCA patch cables for connection to your system)

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


 



Looking for a more '$ERIOU$' Reel to Reel Tape deck. Check this link out...
 

Or,

if your pockets are 'even deeper', there is a NEW deck being built from the ground up....

Or,

if your pockets are "deeper than deep", Check out this NEW deck being built...
 

 





UPDATED LIST 9/11/2021
Reel to Reel Decks
Coming Soon
(or at least as time allows):

Akai GX-4000D (#2) (tech has finished, awaiting final inspection / testing / sign-off / photos / text)
Concord 300 (tech has finished, awaiting final inspection / testing / sign-off / photos / text)
Fostex Model 80 (Just in. Awaiting spot for initial bench test / evaluation)
Sony TC-123 (Tech has finished, awaiting final inspection / testing / sign-off / photos / text)
Sony TC-377 (two more just in. Awaiting spot for initial bench test / evaluation)
Sony TC-353 (Awaiting spot for initial bench test / evaluation)


(While we have many dozens more decks in stock, awaiting bench / tech time, MANY WON'T MAKE IT thru our stringent process)

 

 

 

 



Looking for a more '$ERIOU$' Reel to Reel Tape deck. Check this link out...

 

 

 

 



A few 'multi-tracks', 'half-tracks' and 'semi-pro' reel to reel decks.
Clockwise, starting at upper left; TEAC A-2340SX, TEAC 40-4, TEAC A-2340R, TEAC 32-2B
FOSTEX E-22, TEAC 38, TEAC A-3440, TEAC 40-4.


 



A few random notes about head / track format for 'consumer' / 'semi-pro' 1/4 & 1/2" reel to reel machines:

Most 'consumer' decks will utilize a "4-Track / 2-Channel" track / head format. That means the tape will have '2-sides' and generally be 'stereo'. With the exception of 'portable' decks, many decks made / sold from the early-mid 1960's and, most from the late 1960's thru the last models in the early 1990's will be this format. Most decks will feature two speeds; 3 3/4 ips and 7.5 ips. Some early decks (early 1960's to early 1970's) will also have a very slow speed of 1 7/8 ips. That speed was generally used when 'tape economy / conservation' was paramount, and generally was not acceptable for 'music quality' recording.

Early 'consumer' decks and most portables, including the small 3" / 'transistor / pocket' reel to reel decks utilized a 2-Track / 1-Channel format. This would include the earliest of decks 1950's thru early 1960's for 5" and 7" decks and the small 'transistor / pocket' decks from the 1960's thru the 1970's. The speeds on those could be anywhere from 1 7/8 ips thru 7.5 ips, depending on the unit / model. Tapes made on this type of 'tape deck / head / track format' will play on a '4-Track / 2-Channel' deck to a 'usable' degree for the most part (we've done it). You simply 'mute / turn-down / disconnect' one side or the other from the playback deck.

Sony made quite a few decks that were 4-Track / 1-Channel (TC-105, TC-105A, TC-123, models come to mind). Sony also made a few that were 4-Track / 1-Channel or 2-Channel (TC-200). Akai / Roberts made decks with similar formats as well.

Some tapes can 'cross pollinate' to a 'usable' degree from one deck to another. For instance, you can play a 2-Track / 1-Channel tape on a 4-Track / 2-Channel deck. You will simply need to 'mute' one channel as you will get one side going forward and one going in 'reverse' (think 'backward masking' sound). Technically you'll get the 'forward' playback sound form the 'left channel' and Side-B (the other side) going 'backward'. Simply 'mute' with your 'monitor switch' or your 'Balance' control on your pre-amp or ultimately if necessary, pull out the patch cable on that side to only hear or transfer the 'forward playback' signal. Yes, you will be missing some of the 'audio signal strength' (as the head is not 'covering' the full width of the original recorded track), but given the material that was typically recorded on early 'mono' recordings, it's typically a fair trade-off to the resources that will likely be necessary to acquiring a 'functioning' deck capable of the exact track format.


...I'll add more to this as time allows


*A note about Reverse / Auto-Reverse /: Reverse means that you can manual switch directions in play mode. You can generally do this at any point in the tapes travel.
Auto-Reverse usually means that a deck will automatically switch play directions at the end. This is usually triggered by special foil tape installed on the tapes for sensors on the machine to pick-up. Some machines also require longer foil tape than others. Also decks vary in the side the foil tape has to be installed on to function. If you tape does not have the foil installed or it's foil is too short, or it happens to be installed on the wrong side, Auto-Reverse may not function. Auto-Reverse may only be designed to work in one direction as well. Some decks, such as a few 'Sony's' were designed with their "E.S.P. Auto Reverse", which would change directions after a 'long enough section of 'silence' ' passed by...theoretically...




 

Reel to Reel Tape Running Time Versus Tape Length
ie; "How long does a xxx foot tape play?"

 

TIME IN MINUTES
 SIDE A  SIDE B
Speed ips 1 7/8 3.75 7.5 15 1 7/8 3.75 7.5 15
Tape
Length
               
600' 64 32 16 8 128 64 32 16
900' 90 45 22.5 11.25 180 90 45 22.5
1200' 120 60 30 15 240 120 60 30
1800' 180 90 45 22.5 360 180 90 45
2400' 240 120 60 30 480 240 120 60
3600' 360 180 90 45 720 360 180 90

 

 


 


LIMITED PERFORMANCE / AS-IS** / AS-FOUND** / RESTORATION PROJECT R2R DECKS BELOW:
 
    

    

       NEW LISTING 2/28/2020
 
(Click on above thumbnails to enlarge photos)
VINTAGE SONY REEL TO REEL
ALL TUBE SONY TC-500A PORTABLE REEL TO REEL
#...1051
CIRCA MID 1960'S
MIJ
RESTORATION PROJECT / REFURB CANDIDATE / AS-IS

for sale

Fixer-Upper, All-Tube, Sony TC-500a Reel to Reel tape deck / player / recorder.
Another one we are clearing out in 'as-found' condition. We just likely aren't going to have time to restore them all so it's for sale 'as-is'.
 
What we know / observed:
- Clean inside and good condition out
- Powers-Up fine
- Motor Runs
- Has good Fast Forward and Re-Wind function at decent speed at most or all locations on a 7" reel
- Capstan turns
- Counter functions
- Tape plays / sounds decent
- Tape deck does record surprisingly well for an 'As-Found' deck (includes a tape we just recorded on it)
- Functions vertically or horizontally (will need reel clamps for 'vertical' use which aren't included)
- All Lights / Bulbs for 'Recording Indicator' and 'Meters' work
- Pinch roller appears serviceable
- Internal idler tires / wheels, have a few cracks on some, but are serviceable IMO (we certainly would have no issue reconditioning them with full faith)
- Heads appear to be in good condition (see above photos)
- Decent cosmetics (may be dusty / dirty etc.)
- Actually not too many electrolytic capacitors inside to change (we may have a 'change of heart' on this one and restore it before it sells because of that)
- No apparent missing parts
- Mostly original NEC tubes with a couple of American GE tubes
- Internal Tube Amp sounds decent from both L & R
- External Speakers both function well
- All I/O jacks works well

Sony TC-500A Features:

- All Tube Electronics
- Original Specified Tube Compliment; 2X 12AD7 (or 12AX7), 2x 6AU6, 2X 6AQ5, 1x 12BH7A, 1x 6CA4 (at least one "12AU7" has been installed in-place of the 12AD7)
- Point to Point wiring
- Built-In Stereo Tube Amplifier
- Can work as a PA system as well
- Mix Microphone input with Line Input signal (great for 'singing along' into recordings)
- Back-Lit, Analog, Level Meters

- Variable Output / Volume 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 Mic / Line level controls
- Auto stop for play and fast wind functions

- "Inst Stop" to reduce backlash when in FF mode
- Analog Tape Counter
- Pause control

- Dual, 4.5" driver Speakers fold up onto case for a portable unit (about a 60 lb "portable unit")
- RCA and DIN I/O jacks
- Dual front mounted " Microphone inputs
- External, 1/4" Speaker jacks
- External Line Fuse
- Dual AC convenience outlets

-True "WORLD AC POWER" allows unit to be operated on 50 or 60 Hz AC and will select voltages from 110v, 120v, 220v and 240 volts AC input.


SONY TC-500A Original Specifications:
 

Heads / Track system: Reel Heads; 4-track 2-channel / Stereo or 1-Channel heads for stereo or mono, Erase, Recording / Playback

Motors: One 'Hysteresis Synchronous
Transport Control Type: Direct linked Mechanical
Maximum Reel capacity: Up to 7"
Tape speeds: 3.75 ips & 7-1/2 ips
Wow & Flutter: Reel; >0.15% RMS @ 7.5 ips
Frequency response: Reel; 30Hz to 18,000Hz (3dB @ 7-1/2 ips)
 &
30Hz to 13,000 Hz @ 3-3/4 ips
Signal to Noise Ratio: > 50dB on R2R
Amplifier Output Level: 3 W

Bias Frequency: 80kHz


Great restoration projects if you have the skill sets. Would likely make a great, tube reel to reel / sound system. Comes with non-original AC power Cord.
Can include an 'e-copy / pdf' of the Sony TC-500A service manual if purchaser desires. Measures 18.5 x 16.5 x 12.5 folded up and weighs 55 lbs unpacked.

$589. As-Is, entire Unit*
 

~$1300-$1500. 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).


(Reels and reel clamps / stoppers shown in photos are not included, but we sometimes / occasionally have them for sale. Inquire at time of order.

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

 

 

    

       NEW LISTING 2/28/2020
 
(Click on above thumbnails to enlarge photos)
VINTAGE SONY REEL TO REEL
ALL TUBE SONY TC-500A PORTABLE REEL TO REEL
#...2130
CIRCA MID 1960'S
MIJ
RESTORATION PROJECT / REFURB CANDIDATE / AS-IS

for sale

Fixer-Upper, All-Tube, Sony TC-500a Reel to Reel tape deck / player / recorder.
Another one we are clearing out in 'as-found' condition. We just likely aren't going to have time to restore them all so it's for sale 'as-is'.
 
What we know / observed:
- Clean inside and good condition out
- Powers-Up fine
- Motor Runs
- Has very little (inadequate) torque on Fast Forward and Re-Wind function likely due to 'glazed rubber idler tires'
- Capstan turns, but play will sometimes slow down, again likely due to glazed or worn rubber. Could be Start / run caps, but until the rubber is reconditioned or replaced, you would be 'guessing' (of course it doesn't hurt to proactively replace the 'start / run' caps)
- Counter functions
- Tape made sound from both channels
- Very dirty Record switches
- Tape deck does record a signal on Right channel, but low on left. May need a new tube in that circuit.
- Functions vertically or horizontally (will need reel clamps for 'vertical' use which aren't included)
- All Lights / Bulbs for 'Recording Indicator' and 'Meters' work
- Pinch roller appears serviceable
- Internal idler tires / wheels, have cracks. May be restorable, but may also need to be rebuilt / replaced with reconditioned ones (they're available out there)
- Decent cosmetics (may be dusty / dirty etc.)
- Actually not too many electrolytic capacitors inside to change (we may have a 'change of heart' on this one and restore it before it sells because of that)
- We removed the AC cord jack cup, so it will need a replacement or better yet, just change to a 'fixed' AC mains cord
- Missing the 'Sony' logo from head cover, the 'bright' from the speed change knob, and the set screws from the plastic head cover
- All original NEC tubes
- Internal Tube Amp sounds decent from both L & R
- External Speakers both function well
- All I/O jacks works well

Sony TC-500A Features:

- All Tube Electronics
- Original Specified Tube Compliment; 2X 12AD7 (or 12AX7), 2x 6AU6, 2X 6AQ5, 1x 12BH7A, 1x 6CA4
- Point to Point wiring
- Built-In Stereo Tube Amplifier
- Can work as a PA system as well
- Mix Microphone input with Line Input signal (great for 'singing along' into recordings)
- Back-Lit, Analog, Level Meters

- Variable Output / Volume 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 Mic / Line level controls
- Auto stop for play and fast wind functions

- "Inst Stop" to reduce backlash when in FF mode
- Analog Tape Counter
- Pause control

- Dual, 4.5" driver Speakers fold up onto case for a portable unit (about a 60 lb "portable unit")
- RCA and DIN I/O jacks
- Dual front mounted " Microphone inputs
- External, 1/4" Speaker jacks
- External Line Fuse
- Dual AC convenience outlets

-True "WORLD AC POWER" allows unit to be operated on 50 or 60 Hz AC and will select voltages from 110v, 120v, 220v and 240 volts AC input.


SONY TC-500A Original Specifications:
 

Heads / Track system: Reel Heads; 4-track 2-channel / Stereo or 1-Channel heads for stereo or mono, Erase, Recording / Playback

Motors: One 'Hysteresis Synchronous
Transport Control Type: Direct linked Mechanical
Maximum Reel capacity: Up to 7"
Tape speeds: 3.75 ips & 7-1/2 ips
Wow & Flutter: Reel; >0.15% RMS @ 7.5 ips
Frequency response: Reel; 30Hz to 18,000Hz (3dB @ 7-1/2 ips)
 &
30Hz to 13,000 Hz @ 3-3/4 ips
Signal to Noise Ratio: > 50dB on R2R
Amplifier Output Level: 3 W
Bias Frequency: 80kHz


Great restoration projects if you have the skill sets. Would likely make a great, tube reel to reel / sound system.
Can include an 'e-copy / pdf' of the Sony TC-500A service manual if purchaser desires. Measures 18.5 x 16.5 x 12.5 folded up and weighs 55 lbs unpacked.

$489. As-Is, entire Unit*
 

~$1300-$1500. 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).


(Reels and reel clamps / stoppers shown in photos are not included, but we sometimes / occasionally have them for sale. Inquire at time of order.

(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 theyre 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 (theres probably issues we didnt or couldnt 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 youre 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 theyre generally a single digit percentage of whats out there available for sale.

 


 

 

 

 

 



RECENTLY SOLD UNITS BELOW

 

              

         

NEW LISTING 4/28/21
(Click on above thumbnails to enlarge photos)
CheckMarkSmall_web.jpg (792 bytes) warranty
FULLY SERVICED / REFURBISHED WITH WARRANTY
OTARI
REEL TO REEL TAPE DECK
OTARI MX5050-BII 'MASTERING DECK'
#...2021
2-TRACK ('HALF TRACK') 2-CHANNEL STEREO MASTERING DECK
PLUS
4-TRACK / 2-CHANNEL PLAYBACK

4-HEAD / 3-SPEED / 3-MOTOR
10.5" REELS OR SMALLER
PRETTY MUCH THE 'SWISS ARMY' KNIFE OF DECKS
THIS IS ABOUT AS CLOSE AS YOU WILL GET TO "ONE DECK THAT DOES IT ALL"

MIJ
Circa 1979-89
SOLD 5/14/2021
SHIPPING TO KEN IN GEORGIA

Our technician has EXTENSIVELY gone through and 'Certified' this unit. We have completely and EXTENSIVELY gone through the mechanicals and electronics of this unit (and this was a BIG project as it's a VERY complex deck).

 Initially FS702 would blow when transport engaged. Found bad D702 rectifier and bad IC802. Replaced both to cure issue. Now all power supply Voltages correct.

 Initially had intermittent record issues, especially with one channel. Found both Omron "GTVN-234P / 24VDC" (R301 & R401) relays were occasionally intermittent. Replaced with NEW, correct, Omron OEM relays.

 Via extensive testing of all the systems and system combinations, we found bad and questionable components / semi-conductors / transistors at call-out locations; Q408, IC302, & Q409

 Via Following the above mentioned replacements, there still remains an issue with recording when in the SOS / SWS mode. We chose not to continue to pursue those aspects as few users would ever need to record "Sound on Sound" or "Sound with Sound". There are other, easier, cheaper ways to do that nowadays.

 Transport mechanisms disassembled, cleaned, lubed w/ 'SuperLube', silicone based gel and light machine oil as necessary and reassembled

 Tape Tension arms disassembled, cleaned and re-lubed, and their springs adjusted and had fresh 500,000 grade silicone lube gel applied

 pinch-roller mechanism completely disassembled, cleaned and re-lubed.

 Capstan motor disassembled. New oil felts fabricated and installed

 Rubber pinch and impedance rollers removed, re-surfaced, conditioned and re-installed with fresh lubricant

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

 Brakes adjusted on fast wind modes also (optimized for 7" & 10.5" tape.)

 Back tension checked / adjusted on both reel motors.

 All three motors test perfectly. Following above adjustments, Reel Start and Stop tested at beginning, middle and end of 7" & 10.5" tapes (VERY QUICK 'FAST WIND' ON THIS ONE)

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

 We adjusted the VU meters mechanically for correct 'resting position' and electronically w/ factory test tone tapes, as well as the internal playback and record levels.

 All four meter lamps replaced with #25-450 bulbs

 Both spindles in perfect alignment.

 We also checked / adjusted the reel table heights.

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

 Playback and Record Head alignment / azimuth / Phase was adjusted for peak performance with factory test tone tape and oscilloscope.

 Speed tested to 99.9+% accuracy following refurb with pitch control defeated or "Off" (meaning that our 'verified' 1000Hz test tape now plays back at 1000 +/- 1Hz) (separate, internal adjustments for each of the three speeds were addressed).
 
 Adjusted to record AMAZINGLY WELL at 0dB both with full bandwidth Pink-Noise, then 1kHz test and in 'Real World' use w/ 'mixed DDD CD' signals. (Tested with multiple Tapes, ie; Scotch 207, Maxell XL-II, Ampex GM456, ATR, and Ampex 499. Tech noted, "Best I've ever heard").

 Floor noise measured at >-60dBm w/ blank tape, L&R

 Following refurb / service mechanicals tested for 'play torque' at beginning and end of largest size reels, as well as 'Fast wind torque' and 'braking tension' in both FF and REW, at beginning, middle and end of tapes. In other words, every combination of transport function was tested and passed.

 This Otari MX5050B-II functions, plays, and records VERY WELL (and 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).  


 Recording tests performed with the following tapes and results:

Scotch 207
tape. Heres how it tested at 0dB; 1kHz / L= ~-1.75dB & R= ~-1.75dB
Maxell UDXL-II
tape. Heres how it tested at 0dB; 1kHz / L= ~-2.75dB & R= ~-2.75dB
ATR
tape. Heres how it tested at 0dB; 1kHz / L= ~0dB & R= ~0dB
Ampex GM456
tape. Heres how it tested at 0dB; 1kHz / L= ~0dB & R= ~0dB
Ampex GM499 tape. Heres how it tested at 0dB; 1kHz / L= ~0dB & R= ~+.75dB

 (Total time investment in refurb / testing ~ 42+ hours).

This is an fabulous deck for both recording or playback, again of 'Half-Track / 2-Track' tapes and playback of standard, 4-Track/2-Channel tapes AND for speeds of 3.75ips, 7.5ips or 15ips. Following refurbishment, the deck looks and works great and sounds amazing!!! 

As this deck plays 2 different tape formats and 3 speeds, it would make a great 'One-Size-Fits-Most' deck for a media tape transfer house as well.

The Otari MX5050B-II Stereo 'Half-Track / 2-Channel' / 'Quarter-Track / 2-Channel', 1/4" wide Reel to Reel tape deck. Ready to GO! First one of these we've had in 30+ years of dealing in vintage audio. This is one of the few reel to reel decks we get in that make it to our finished page. Following our refurb / bench time it's now an AMAZING performer (Check the 'recording test results' above and the 'specs' in larger text below). If you're looking for a reel to reel deck to "actually use" here you go. Only about 25% of the used Reel decks out there can be "practically" restored to working order. This one made it through with flying colors after about 41+ hours of bench time.

The deck tests great! Cosmetically it's in good condition. Looks good and sounds great ! We have completely gone through it. Will play up to 10.5" reels.

Otari MX5050B-II Features include:

- Half-Track / 2-Track / 2-Channel Stereo head stack / tape format for recording and playback and additionally a 4-Track / 4-Channel head-stack for playback of standard, commercially recorded tapes.
- 3 Heads for instant monitoring of tape levels while recording
- Up to 10.5" Max Reel Capacity (The BIG Reels!)
- Direct Capstan drive...YEA, NO belt to worry about! (NO 'Counter' belt required either!)
- Built-in Test Tone Oscillator for Bias, Recording Level / Tape Type adjustments and head adjustments (1kHz and 10kHz generator)
- Fixed or Completely variable Bias adjustment (owners manual includes a chart with suggested Bias settings for most contemporary tape types / brands / models, but I prefer to do it 'by ear')
- Completely variable Playback Tape EQ adjustment (owners manual includes a chart with suggested EQ settings for most contemporary tape types / brands / models, but I prefer to do it 'by ear')
- 3 Motors (means less 'Rube Goldberg' mechanisms inside like many R2R's)
- Solenoid tape transport for "Touch" control
- Triple speeds at 15ips / 38cms, 7.5 ips / 19cms & 3.75 ips / 9.5cms (switchable internally between 15/7.5 & 7.5/3.57 pairs)
- Sound-on-Sound / Sound-with-Sound / Punch In / Punch Out capabilities (SOS & SWS is essentially inoperative due to further circuitry issues we were not able to resolve as it wasn't monetarily practical. The chance that anyone would need those functions from the deck is "slim to none".)
- Very 'Serviceable' internal design with either 'swing In/Out' cards or detachable connectors

- Cue Lever for lifting tape away from head in Fast Wind modes or for moving tape close enough to head to monitor fast wind progress
- Input (Source) / Repro (Monitor) selector independently for each channel
- Output level control for each channel
- Low or High output ranges (selectable on rear panel)
- IEC or NAB Equalization (selectable on rear panel)
- Low / Mid / High Flux Reference level (selectable on rear panel)

- Dual analog VU level meters w/ LED 'Peak' indicators
- Digital Tape Counter w/ "Memory Stop" function
- XLR Line & MIC I/O's for all channels
- Dual Microphone inputs with 20dB attenuators
(selectable on rear panel)
- Ground connector on rear panel for reducing / addressing 60Hz hum
- Rack mountable with optional ears
- Can be used in either 'Vertical' or laying back, all the way to 'Horizontal'
- Accessory connectors for optional Otari Remote control
- Tape 'Splice Block' located on the head cover


As stated earlier we have completely gone through it cleaning heads and all else, lubing, adjusting, reconditioning pinch rollers and other rubber parts, demagnetizing heads and entire transport and testing everything.
Tape speed tested and resulted in 99.9% accuracy using a 1000 Hz test tape. Plays and records Exceptionally well (and we really put them through the paces, testing both with well mixed CD material and CD test tones looking for correct head Azimuth, tape speed accuracy and making test recordings. Again, check the 'test results' listed above). Pinch rollers and heads all in GREAT condition!!! Very clean and GREAT! 

Otari MX5050B-II Specs / Specifications from the owners manual / brochure as follows:

Head / Head-stack Format: 4 heads,(2-track, 2-channel, stereo/monaural system
Track Format: 2-track / 2-channel Record and Playback AND 4-Track / 2-Channel Playback (switchable under head cover)
Motors: 3X. Capstan motor: DC brushless, PLL Servo. Reel motors: AC, 6-pole, induction
Reel Size: Acceptable 7 & 10.5" (3" & 5 reels may not brake correctly as deck is optimized for 7-10.5" reels, but can still work and be usable)
Tape Speeds: 15 ips / 38cms, 7.5 ips / 19cms & 3.75 ips / 9.5cms
Frequency Response w/ 'High Bias' Tape:
30-20,000 Hz @ 15ips. 2dB
20-18,000 Hz @ 7 1/2ips.
2dB
20-10,000 Hz @ 3 3/4ips. 2dB
Pitch Control:
7%
Wow and Flutter: <0.06% @ 15 ips & <0.08% @ 7.5 ips & <0.12% @ 3.75 ips
S/N ratio (NAB EQ / Weighted. Other variations available in manual): 69dB @ 15ips & 68dB @ 7.5ips (measured with respect to a recorded level of 520nWb/m to biased tape noise when using Scotch 226 tape)
THD: <0.5% @ 1kHz / 250nWb/m
Crosstalk: >55dB on 2 or 4 tracks
Erase Efficiency:
>75dB
Bias & Erase Frequency:
133kHz (much more related content in manual regarding Flux density and Tape Bias / EQ)
Erasure depth; >75dB
VU Meters; -25dB to +3dB VU range
Line Input: Min -15dBm / Impedance 10kΩ
Mic Input:
Min -70dBm / Impedance 150-10kΩ
Output Level: +4dBm / -10dBm selectable on rear panel.
Test Oscillator: 1kHz for Bias Adjustment and 10kHz for Head Azimuth adjustment
Fast Wind Time: VERY FAST @ 90 sec for 2500'


As I mentioned earlier it's about as 'Swiss Army' knife as you could get. It can do 3 speeds from 3 3/4ips to 15ips, AND can play 2-Track or 4-Track tapes. We've had other decks that can do one of those two options, but never one that can do BOTH!!! This is a GREAT deck with UNBELIEVABLE PERFORMANCE. I think it is now my favorite model of Reel to Reel deck (at least among the many dozens I've had over the past 3 decades). Probably the best sounding deck I've had the pleasure to audition due to the built in oscillator, fine bias and variable EQ alone.
Again, as mentioned earlier, cosmetically it's in great condition.
This was
considered a 'standard' among studio engineers. A real 'Workhorse' throughout much of the 1980's into the '90's.

Measures 17.25" wide (with side panels installed) x 20.7" tall x 9" (from tip of back feet-tip of hubs) deep and weighs a
HEAVY 58 lbs unpacked and with side panels installed

This Otari MX-5050B-II comes with;

> 7", plastic take-up reel,
>
'NEW ATR' 7" tape recorded on this machine for initial testing of playback, and

>a couple other 7" tapes you can record onto,

>AND a 10.5" take-up reel, all to assist you in becoming familiar with the operation / function of your new reel to reel tape deck.

 
>We are ALSO including a pair of Pioneer NAB hub adaptors and

>
a pair of rubber stoppers (modified specifically for the 5050. NAB's will not have their original Pioneer labels intact).

>Also comes with 2 pair of XLR-RCA adaptors (male and female) as well as the RCA cables to get you going.

>Comes with an 'e-copy' / pdf download of the Otari MX5050B-II owners / operations manual, & service manual if purchaser so desires.

>Includes our standard 90 day limited warranty.


(Reels & tape shown in 'MAIN' photos not included (the "
Lagniappe" in the last photo is included. All are sometimes available separately if you need them. We do ship our decks with a plastic take-up reel, a tape to 'practice record' on and a 'pre-recorded' tape for playback.) 
OTARI MX5050B-II HALF-TRACK / STEREO / 4-TRACK / 4-CHANNEL REEL TO REEL TAPE DECK
Cond. 8.5
$3799.

SOLD 5/14/2021
SHIPPING TO KEN IN GEORGIA


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

(Due to the size and weight of this particular unit, it runs a bit more for shipping relative to other (consumer) reel to reel machines)

- archived

 

              

            NEW LISTING 7/15/2021
(click on above thumbnails to enlarge photos)
CheckMarkSmall_web.jpg (792 bytes) warranty
RESTORED / REFURBISHED / FULLY SERVICED / WARRANTED
PIONEER OPEN REEL TO REEL TAPE RECORDER
 10.5" / 1/4" STEREO TAPE DECK
PIONEER RT-909 / RT909 REEL TAPE DECK
#...2720
 4-TRACK / 2-CHANNEL
  2-SPEED / 3 HEAD
AUTO-REVERSE
 5" / 7" / 10.5" (THE BIG ONES) REEL CAPACITY
  Circa 1979-84
MIJ
for sale

SOLD 8/3/2021
SHIPPING TO ELVIS IN NORTH CAROLINA


  Our technician has completely gone through and 'Certified' this unit.

 We have completely and extensively gone through the mechanicals and electronics of this unit.

 Entire transport was disassembled down to the chassis, and every mechanical part was cleaned, re-lubed and reassembled.

 Pinch-roller Lift Mechanism completely disassembled, cleaned and re-lubed (requires pulling head block, and Meter CB, once entire front face panel is removed and is fairly time consuming, but must be done on about 50% of 909's)

 PR mechanism solenoid mounts adjusted

 Capstans / flywheels removed, bushings and axels cleaned and re-lubed

 Capstans burnished

 Rubber pinch rollers have been replaced with FRESH units

 Brand new drive belt installed

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

 Power supply CB adjusted to correct 15.1 VDC which enables proper and certainly best performance from Cap motor, Playback and Record amp circuits

 Both L&R Tape Tension arm mechanisms removed, completely disassembled, solvent cleaned and re-lubed with 500,000 grade silicone gel (time consuming process and must be done to about 75+% of 909's)

 Back tension adjusted on both reel motors.

 Reel motor start / run capacitors healthy

 All three motors test perfectly. Following above adjustments, Reel Start and Stop tested at beginning, middle and end of 7" and 10.5" tapes

 Brakes adjusted on fast wind modes on both 7.5 and fully loaded 10.5 reels from top speed.

 Internal pots, switches and controls cleaned and tested for noise-free function.

 We adjusted the 'Blue Fluorescent' VU meters electronically w/ factory test tone tapes, as well as the internal playback levels for both directions independently and record levels.

 Deck has been fully calibrated to factory manual specs, tested, and found to perform like new in all categories.

 Both spindles now in perfect alignment.

 We also adjusted the reel table heights.

 Heads have virtually no appreciable, visible wear.  

 BOTH direction Playback and Record Head alignment / azimuth was adjusted for peak performance with factory test tone tape and oscilloscope.

 Both internal speed pots (VR21 & VR22) adjusted to 100% accuracy on 3.75ips and 7.5ips speeds  independently (with pitch control zero'd) (meaning that our 'official' 1000Hz test tape now plays back at 1000Hz +/- 1Hz w/ pitch control at 12:00 position).

 Recording tests performed with Ampex GM456 and Maxell UD (Gold / Black) Tapes.
Heres the results;

GM 456 @ 7.5ips. White Noise @ 0dB = +3 dB L&R with very little artifacts
GM 456 @ 7.5ips. 1kHz @ 0dB = +2 dB L&R
GM 456 @ 7.5ips. Recorded program from "ddd" source @ 0dB = +2-3 dB L&R and 'bright'
Maxell UD @ 7.5ips. White Noise @ 0dB = +1 dB L & +2 dB R with very little artifacts
Maxell UD @ 7.5ips. 1kHz @ 0dB = -.05 dB L&R
Maxell UD @ 7.5ips. Recorded program from "ddd" source @ 0dB = +1-1.5 dB L&R and 'bright'

Pretty damn good numbers for a 40 year old classic!


 Floor noise measured at >-60dBm

 Original Pioneer Leg / skid sourced to replaced one of the originals that had one end chipped off

 This Pioneer RT-909 functions, plays, and records perfectly (and 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).  (Total time investment in refurb / testing ~ 17+ hours).

 Face is made of beautiful brushed aluminum and with the exception of a small 'smug' area and other area of light striations (see photos) is in great condition and has never been rack mounted. Deck looks and following it's extensive service, now works great! 
____________________________

Looks GREAT & is "Ready-to-go"! The VERY sought after Pioneer RT-909 Stereo Reel to Reel tape deck. Will play / record stereo 1/4" tapes on reels 5, 7 & 10.5". This is one of the few reel to reel decks we get in that make it to our finished page. Great performer. This one made it through and all functions test great! If you're looking for a reel to reel deck to "actually use" here you go. Only about 30-50% of the used Reel decks out there can be "practically" restored to working order. Heads have no appreciable, visible wear, check the record test results above, evidence theyre in fine shape! Following extensive service and alignment, both mechanically and electronically, recordings sound FANTASTIC on this unit now. Looks and sounds great too! This one has never been 'rack mounted' so no 'rack-rash' on the mounting ears. As touched on above, the heads are in beautiful condition, also with none of the common 'green corrosion'. The reel tables do have a tolerable amount of the typical corrosion that is often seen on Pioneer RT's, but doesn't have any on the head cover (which they often do). Also, both the OEM plastic skids are intact now (afflicts about half the 901's and 909's out there (just FYI: the "skids / legs" on Pio RT-909's should always be removed prior to shipping).
Again, we have completely gone through it and it's ready to go!

Pioneer RT-909 Features include:

- 4-Track / 2-Channel
- 5" / 7" / 10.5" Reel Capacity (compatible with standard / normal 4-Track / 2-Channel tape format)
- 3 Heads for instant monitoring of tape levels while recording
- Three Motors for trouble free performance (has a lot to do with it still being a viable piece of gear due to less rubber parts)
- Dual Flywheel, Closed Loop Tape Transport
- BLUE METERS! Dual "Blue", Fluorescent level meters with dimmer selector
- Variable pitch control (+/- 6%)
- Auto-Reverse for Playback (when using tape with "auto-reverse" sensing foil) (Forward Recording, with forward & reverse playback)
- Dual speeds at 7.5 ips / 19cms and 3 3/4ips / 9.5 cms
- 'IC Logic' / Solenoid Drive Touch Transport control and 'Power Brake' tape handling
- Manual Reverse switches for changing direction with out flipping reels over 
- Spring loaded, Reel table locks (no need for rubber stoppers / clamps)
- Independent Tape 'Bias' and 'Equalization' settings
- Repeat function
- Separate & dual concentric mic and line level controls
- Source / Monitor selector (for instant monitoring of recording)
- Independent L & R record enable switches for doing "sound-on-sound"
- Pitch Control (Playback)
- Left & Right output level controls
- 4-Digit, "Blue", Fluorescent tape counter
- 'Timer' Play / Record function
- Dual front mounted 1/4" Microphone inputs
- Variable output level controls for each channel 
- Standard 19" rack mountable


Pioneer RT-909 Specifications:

Heads: 4 (record, erase, fwd-play, rev-play)
1 Hard 'Permalloy' Recording Head 
1 Ferrite Erase Head 
1 Hard 'Permalloy' forward Playback Head 
1 Hard 'Permalloy' reverse Playback Head

Motors: Capstan drive motor; 1 (FG servo DC motor)
Reel base drive motors; 2 (6-pole inner rotor special induction type)
Tape Speed:
19cm/s (7-1/2ips), 9.5cm/s (3-3/4ips) 0.5%
Wow and flutter:
< 0.04% WRMS (19cm/s)
< 0.08% WRMS (9.5cm/s)
Signal to noise ratio: >60dB
THD:
<1% @ 19cms
Frequency response:
@ 19cm/s  20Hz to 30,000Hz (20Hz to 28,000Hz 3dB)
@ 9.5cm/s  20Hz to 20,000Hz (20Hz to 18,000Hz 3dB)
Crosstalk:
>50dB
Channel separation:
>50dB
Erasing coefficient:
>60dB
Recording bias Frequency:
125kHz
Pitch-control:
+/- 6%
2 VU-meters:
dB (-30 to +8)
Input Sensitivity (Minimum / Maximum allowable level / impedance):
Mic x 2; 0.316mV /100mV /27kΩ, 1/4" / 6mm diam. jacks
(suitable microphone, 250Ω to 10kΩ)
Line; 50mV / 25V / 50kΩ
Output Level Reference / Maximum:
Line; 900mV / 50kΩ
Headphones; 50mV / 8Ω, 1/4" / 6mm diam. jack
Fast Wind Time w/ 720m Tape & 10.5" reel:
Less than 120 sec.


As stated earlier we have completely gone through it cleaning, lubing, adjusting, demagnetizing and testing everything. Plays and records perfectly, AGAIN, records at +2dB @ 1kHz!

As we replaced one, now the OEM feet / skids intact and perfect (these are commonly broken / partially missing).

Thick & solid brushed aluminum face plate in good condition with only the above mentioned rubs / striations, and has never been 'racked' so no rack screw rack rash / marks!  

Prior to arriving to us, the sheet metal case was re-sprayed in satin black and is in good condition. There is an area on the back panel where someone had engraved id info, no obliterated with vinyl adhesive covering it.

These are great machines. I have had this one myself for years. It's a blast to put on a BIG 10.5" reel with Pink Floyds, "Dark Side of the Moon". Even though it was designed for the consumer market, many were and are in use in schools, universities, libraries, clubs, etc. I worked at a Sheraton Inn in the late 70's and early 80's, and we had two in the DJ booth, that supplied foreground music from about 11AM till the DJ showed up at about 9PM, 7 days a week!

Also includes a 'non-Pioneer', Metal (Scotch brand with some surface wear), 10.5" take-up reel, as well as our normal accessory kit that includes a 'PlayBack Demo' made on the deck, a 7" plastic take-up reel, and a couple of other assorted 7" tapes to play with.
Includes a pdf / 'e-copy' download of the Pioneer RT-909 Owners manual, and if desired, a copy of the Pioneer RT-909 Service manual. Measures 19" wide x 11.5" deep x 13.5" high and weighs 46 lbs unpacked. Includes our standard 90 day limited warranty.
We have restored / refurbished / serviced MANY reel to reel decks over the past 2+ decades, including a lot of Pioneer RT-909's. This is THE BEST recording / performing deck we have finished. "The planets all aligned" and our tech was really able to 'dial' this one in!
PIONEER RT-909, #5708 Reel to Reel Tape Deck
Cond. 8.5+

$3699.
SOLD 8/3/2021
SHIPPING TO ELVIS IN NORTH CAROLINA


IN ADDITION TO ABOVE MENTIONED ACCESSORIES, WITH A PAIR OF NAB HUBS FOR 10.5" REELS!!!

(Reels shown in photos are not included, but we sometimes / occasionally have them for sale. Inquire at time of order.
However, all of our decks will come with 2x tapes for testing 'Playback' and 'Recording' as well as a 7" 'take-up' reel, and RCA patch cables for connection to your system)

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

 

 

 

         

    

NEW LISTING 4/29/2021
(Click on above thumbnails to enlarge photos)
warranty
RESTORED / REFURBISHED / FULLY SERVICED
SONY REEL-TO-REEL 1/4" STEREO TAPE DECK
SONY TC-377 / TC377
4-TRACK / 2-CHANNEL
3-SPEED / 3 HEAD (F&F HEADS!)
"LOCKING SPINDLES"!!!
3"- 7" REEL CAPACITY
#...9636
Circa 1972-77

SOLD 5/18/2021
SHIPPING TO TRAVIS IN MONTANA


Of the many Reel to Reel Tape decks built by Sony, especially from the late 1960s and into the early 70s, this has always been one of our favorite machines for Features, Build quality (that by luck, lends itself well to restoration 50 years later), solid and most importantly DEPENDABLE performance, and consistent sound quality.
 
Our technician has EXTENSIVELY gone through and 'Certified' this unit.

 Entire transport was disassembled down to the chassis, and every mechanical part including head block assembly, was cleaned of "varnished" lubes and re-lubed as well as the always at issue on most Sony's of this era, Pinch Roller plunge assembly, re-lubed and reassembled.

 Flywheel / capstan removed, bushings cleaned and re-lubed when re-assembled.

 Capstan cleaned / burnished

 All Drive and counter belts replaced for trouble-free service.

 All three internal drive tires / wheels resurfaced on drill-press, then reconditioned for positive grip

 We discovered that one of the idler wheels had a bronze bushing that with enough wear that caused excessive mechanical noise. We replaced it with an original / OEM wheel from another TC-377 we had and re-conditioned it. Now the entire deck is quite as it should be.

 Both reel hubs / clutches removed, disassembled and cleaned.

 All hub brake pads have been replaced, and their bearings re-lubed and adjusted on fast wind modes also.

 Motor has been re-lubed as well.

 Internal voltage is self regulated DC and values were verified.

 All Internal & External pots, controls, & switches (including the linear 'record' switches) cleaned and tested for noise-free function.


 Both reel tables removed, disassembled, clutch pads resurfaced, then reassembled and tensioned correctly

 Both spindles in perfect alignment.

 We also adjusted the reel table heights for tighter fitting reels, and no 'flange rub' by adding a layer of rubber under the original table mats (assuming you're installing reels that are also 'running true')

 Pinch roller reconditioned / re-surfaced.

 Mains AC cord replaced

 Power supply board tested to it's intended +25VDC. We had full voltage to the record amplifier and was able to adjust record amp to intended levels.

 New VU meter illumination lamp installed (#25-090) and both record indicator lamps test fine.

 Internal 'Line Level', 'Bias', 'Record-Level', 'Record EQ' and 'PB' micro-pots cleaned EXTENSIVELY and levels adjusted with proper test tapes.



 Heads were cleaned and de-magnetized as well as the entire transport.

 Ferrite and Ferrite heads all in great shape, with many years of performance left in them. (technicians note: "heads appear 'un-used'. They're the best we've ever had on a deck and look NEW!")

 Head alignment / azimuth has been checked for peak performance with factory test tone tape and oscilloscope at 100Hz, 1kHz and 10kHz.

 Both level meters adjusted for even playback level w/ factory test tone tape.

 Floor noise tested to -60dBm w/ fresh, blank tape on PB.

 Plays and Records GREAT both channels


Records GREAT @ 0dB / 1kHz on High Bias tape (Ampex GM456 and / or ATR Tape) w/ L=~+2dB and R=~+2dB. Recorded program material SOUNDS FANTASTIC!!!

 Speed checked once 'warmed up', to 99.1% accuracy. (Meaning a 'factory' 1kHz tape plays back at 991Hz. (tech note: has Sony 60Hz / #0 motor pulley installed from factory)

 Following the above procedures, entire unit was detailed inside and out

Again, Pinch roller and F&F Heads all in GREAT condition.

(Total time investment in refurb / testing
~ 17.5 hours).

Cosmetically there's a few striations in the upper, left corner of the face, the lower, left corner and circular 'witness marks' from metal reels being 'stopped by hand' at some point in it's life. There's also a small ding in the lower, left corner of the face (see photos above of details).
  ____________________________
   
GREAT performing Sony TC-377 1/4" Open Reel to Reel stereo tape Record / Play deck and has all 3 consumer speeds! Good for reel sizes up to 7" in diameter. Great for burning your tapes to CD or Hard Drive or for making new tapes. Also great for having fun in your project recording studio.

Sony TC-377 Features include:
   
- Triple speeds @ 7.5 ips / 19cms, 3 3/4ips / 9.5 cms and extra long 1 7/8 ips / 4.75 cms
- 3-Heads for instant monitoring of tape levels / record quality while recording
- Plays up to a 7" reel as well as 3" & 5" reels
- Playback / Recording of either stereo or mono tapes
- "F&F" Ferrite & Ferrite Heads (super hard heads to prevent un-even headwear and maintain a perfectly parallel gap for preserving top end in recordings)
- Separate L & R Signal Input level controls
- Separate L & R Microphone level controls
- Auto-Stop
- Dual analog VU meters for monitoring Playback and Record levels
- "Sound-On-Sound" capable w/ independent L & R record Source / Monitor engage switches
- Tape 'Echo' effect capable
- Built-in Tape Type selector for normal or "Low Noise / Extended Headroom" tapes
- Dual front mounted 1/4" mic input jacks
- 1/4" Stereo Headphone jack
- Mechanical Tape counter
- Variable Output level control located near I/O ports
(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)
- Lockable Pause "Inst-Stop" lever
- Mic Attenuator selector
- RCA inputs and outputs
- Spring loaded tape hub spindles (no need for rubber reel retainers)
- Can be mounted in cabinet for 'vertical' orientation (as currently installed) or inverted for 'horizontal' use.
- 3-Prong, Grounded AC cord

   
Original Sony TC-377 Tape Deck Specifications:

 
(All with Sony SLH-180 type tape)
 Power Requirements:  117 VAC, 30 watts, 60 Hz     

 Capstan Drive Motor Type: Induction IC-624H1
Heads: Ferrite & Ferrite Rec and PB, Erase; ER18-2902 / ER18-2902A1, Rec; RF140-2902, PB; PF140-4202 / PF140-4202A
 Tape Speed: 7.5 ips / 19cms, 3 3/4ips / 9.5 cms and extra long 1 7/8 ips / 4.75 cms mechanically switched with single lever, with automatic switching for equalization changes       
 Reels: 1/4" tape on 7 inches ог smaller
 Recording Format: 4-track stereophonic оr monophonic
 Frequency Response: 30-25,000 Hz @ 7 1/2ips.
                                  30-20,000 Hz @ 3 3/4 ips.
                                  30- 9,000 Hz @ 1 7/8 ips.
 Signal-to-Noise Ratio: > 55 dB @ 7 1/2 ips w/ high bias tape
 > 52 dB @ 7 1/2 ips w/ normal bias tape
 Flutter and Wow: < 0.09% @ 7 1/2 ips.
                          < 0.12% @ 3 3/4 ips.
 Level Indication: Dual Analog VU Meters
 Record: Calibrated to NAB standard reference level

 Playback Time: With 1,800' tape
 (4-track stereo)  (4-track mono) 7 1/2 ips  1 hr. 30 min.                  / 3 hr. & @ 3 3/4 ips. 3 hr. / 6 hr.
 Inputs: Dual 1/4" Microphone Input Jacks and dual RCA jacks
 Outputs: Dual RCA jacks
 Output Impedance: 10kΩ
 Line Input Sensitivity: .06 Volts
 Line Input Impedance: 100k
 Bias Frequency: 160 (kHz)
 Rewind Time w/ 1200 Tape:- 120 sec
 

Again, following the above stated bench work / testing, our technician has
'Certified' this deck and it is an great performer sonically and mechanically. This deck has had typical restoration. It's pretty much had the clock rolled back 45+ years on it. With the exception of the minor striations / ding and reel marks previously mentioned, (see photos above) the units looks decent. Again, over and above our standard restoration, this deck has virtually NEW heads!
Machine is READY TO GO! Would make a great deck for any one needing a deck to do tape to CD or Hard Drive transfers of reel to reel tapes or for making NEW reel tape recordings. Comes with an 'e' copy / pdf of the Sony TC-377 owners / users manual. Includes a take-up reel. Includes our standard 90 day limited warranty. Measures 16.25" wide x 8.5" deep x 15.75" tall and weighs 24 lbs unpacked.
(Reels & tape shown in photos not included. All are sometimes available separately if you need them) 
SONY TC-377 REEL TO REEL TAPE RECORDER / DECK #...9636
Cond. 8.5

SOLD 5/18/2021
SHIPPING TO TRAVIS IN MONTANA


(Reels shown in photos are not included, but we sometimes / occasionally have them for sale. Inquire at time of order.
However, all of our decks will come with 2x tapes for testing 'Playback' (actually made on this deck) and 'Recording' as well as a 7" 'take-up' reel, and RCA patch cables for connection to your system)

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

- archived

 

 

          

    


NEW LISTING
12/20/2020
(Click on above thumbnails to enlarge photos)
CheckMarkSmall_web.jpg (792 bytes) warranty
RESTORED / REFURBISHED / FULLY SERVICED / WARRANTED
AKAI OPEN REEL TO REEL TAPE RECORDER
 10.5" / 1/4" STEREO TAPE DECK
AKAI GX-630D / GX630D REEL TAPE DECK
#...0189
 4-TRACK / 2-CHANNEL
  2-SPEED / 3 HEAD ("GX" HEADS)
 5" / 7" / 10.5" (THE BIG ONES) REEL CAPACITY
  Circa 1975-79

"WORLD AC POWER"
MIJ

SOLD 1/27/2021
SHIPPED TO GEORGE IN FLORIDA

  Our technician has completely gone through and 'Certified' this unit.

 We have completely and extensively gone through the mechanicals and electronics of this unit.

 Entire transport was disassembled down to the chassis, and every mechanical part was cleaned, re-lubed and reassembled.

 Pinch-roller Lift Mechanism completely disassembled, cleaned and re-lubed.

 Capstans burnished

 Impedance roller removed, bushings and axels cleaned and re-lubed

 Rubber pinch rollers have been properly resurfaced and then re-conditioned

 Brand new counter belts installed #040 & #042

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

 Power supply CB adjusted to correct 24VDC which enables best performance from Cap motor, Playback and Record amp circuits (slightly low Voltage was originally causing a slight 'low record' situation on the left channel. Also repaired shorted diode on 'Servo' cb.

All three motors test perfectly. Following above adjustments, Reel Start and Stop tested at beginning, middle and end of 7" and 10.5" tapes

 Brakes adjusted on fast wind modes on both 7.5 and fully loaded 10.5 reels from top speed.

 Internal pots, switches and controls cleaned and tested for noise-free function.

 We adjusted the VU meters electronically w/ factory test tone tapes, as well as the internal playback and record levels.

 Deck has been fully calibrated to factory manual specs, tested, and found to perform great.

Both spindles in great alignment.

 Slight 'flutter' issue was improved by 'truing' capstan more accurately

 We also adjusted the reel table heights.

 Heads have virtually no appreciable, visible wear.

  Recording tests performed with Maxell UDXL-II tape. Heres how it tested at 0dB; 1kHz / L= ~-1.5dB & R= ~-1.75dB

  Floor noise measured at >-60dBm

 This Akai GX-630D functions, plays, and records perfectly (and 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).  (Total time investment in refurb / testing ~ 16.5+ hours).

 Face is made of beautiful brushed aluminum and is in great condition. Deck looks and works great! 
____________________________
Looks GREAT & is "Ready-to-go"! The very sought after Akai GX-630D Stereo Reel to Reel tape deck. Will play / record stereo 1/4" tapes on reels 5, 7 & 10.5". This is one of the few reel to reel decks we get in that make it to our finished page. Great performer. This one made it through and all functions test great! If you're looking for a reel to reel deck to "actually use" here you go. Only about 25% of the used Reel decks out there can be "practically" restored to working order. Heads have no appreciable, visible wear, check the record test results above, evidence theyre sounding great! Recordings sound FANTASTIC on this unit now. Looks essentially NEW (just a couple little 'tics' on the head cover) and sounds great too! As touched on above, the heads are in beautiful condition. Spindle tridents are in great condition with strong springs, and no cracks, splits or broken spines.

Akai GX-630D Features include:

- 4-Track / 2-Channel
- Up to 10.5" Reel Capacity (compatible with standard / normal 4-Track / 2-Channel tape format, but could do some justice to 4-Track / 1-Channel or 2-Track / 1-Channel)
- 3 Heads for instant monitoring of tape levels while recording
- Three Motors for trouble free performance (has a lot to do with it still being a viable piece of gear due to less rubber parts)
- Direct Drive (no main drive belt to worry about)
- Auto-Reverse for Playback (when using tape with "auto-reverse" sensing foil) (Forward Recording, with forward & reverse playback)
- Dual speeds at 7.5 ips / 19cms and 3 3/4ips / 9.5 cms
- 'IC Logic' / Solenoid Drive Touch Transport control and 'Power Brake' tape handling
- 'Auto-Stop' function
- Spring loaded, Reel table locks (no need for rubber stoppers / clamps)
- Independent Tape type selector
- Separate & dual concentric mic and line level controls
- Monitor Source / Tape selector (for instant monitoring of recording)

- Independent L & R record enable switches
- Left & Right output level controls
- Mechanical tape counter
- 'Reel Size' selector to optimize reel motor back tension and braking
- Dual front mounted 1/4" Microphone inputs
- Variable output level controls for each channel

-True "WORLD AC POWER" allows unit to be operated on 50 or 60 Hz AC and will select voltages from 110v, 120v, 220v and 240 volts AC input.


Original Akai GX-630D Specifications:

Heads: 3 (GX Record, GX Play and erase)
Motors: Direct drive capstan; 1 (AC servo motor)
Reel base drive motors; 2 (eddy current type)

Tape Speed: 19cm/s (7-1/2ips), 9.5cm/s (3-3/4ips) 0.7%
Wow and flutter:
< 0.06% WRMS (19cm/s / 7.5ips)
< 0.09% WRMS (9.5cm/s / 3.75ips)
Signal to noise ratio:
>57dB @ +6VU
THD:
<0.5% @ 1kHz & 19cms
Frequency response:
@ 19cm/s / 7.5ips 30Hz to 25,000Hz 3dB)
@ 9.5cm/s / 3.75 ips  30Hz to 19,000Hz 3dB
Crosstalk:
>55dB / mono
Erasing ratio:
>70dB
Recording bias Frequency:
100kHz
Headphones; 50mV / 8Ω, 1/4" / 6mm diam. jack
Fast Wind Time w/ 2400' tape:
120 sec.


As stated earlier we have completely gone through it cleaning, lubing, adjusting, demagnetizing and testing everything. Plays and records perfectly, AGAIN, records at ~-1.5dB @ 1kHz! Both original feet / skids intact and perfect. Wood grain, vinyl wrapped case in great condition as well.

These are great machines. I have had this one myself for years. It's a blast to put on a BIG 10.5" reel with Pink Floyds, "Dark Side of the Moon".
Also includes our normal accessory kit that includes a 'Play-Back Demo' made on the deck, a 7" plastic take-up reel, and a couple of other assorted 7" tapes to play with.
Includes a pdf / 'e-copy' download of the Akai GX-630D Owners manual, and if desired, a copy of the Akai GX-630D Service manual. Measures 17.5" wide x 9.5" deep x 15.5" high and weighs 42 lbs unpacked. Includes our standard 90 day limited warranty.
Akai GX-630D Reel to Reel Tape Deck
Cond. 8.5+++

SOLD 1/27/2021
SHIPPED TO GEORGE IN FLORIDA


(Reels shown in photos are not included, but we sometimes / occasionally have them for sale. Inquire at time of order.
However, all of our decks will come with 2x tapes for testing 'Playback' and 'Recording' as well as a 7" 'take-up' reel, and RCA patch cables for connection to your system)

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

 

 

 

         

    

NEW LISTING 12/26/2020
(Click on above thumbnails to enlarge photos)
CheckMarkSmall_web.jpg (792 bytes) warranty
RESTORED / REFURBISHED / FULLY SERVICED / WARRANTED
AKAI OPEN REEL TO REEL TAPE RECORDER
 10.5" / 1/4" STEREO TAPE DECK
AKAI GX-630D / GX630D REEL TAPE DECK
#...0510
 4-TRACK / 2-CHANNEL
  2-SPEED / 3 HEAD ("GX" HEADS)
 5" / 7" / 10.5" (THE BIG ONES) REEL CAPACITY
NOT A 'BEAUTY CONTEST' WINNER
  Circa 1975-79

MIJ

SOLD 2/3/2021
SHIPPED TO DAVID IN MARYLAND


This unit has its fair share of 'battle scars' and up close, isn't going to win any beauty contests, but...

Our technician has completely gone through and 'Certified' this unit.

 We have completely and extensively gone through the mechanicals and electronics of this unit.

 Entire transport was disassembled down to the chassis, and every mechanical part was cleaned, re-lubed and reassembled.

 Pinch-roller Lift Mechanism completely disassembled, cleaned and re-lubed.

 Capstans burnished

 Impedance roller removed, bushings and axels cleaned and re-lubed

 Rubber pinch rollers have been properly resurfaced and then re-conditioned

 Brand new counter belts installed #039 & #042

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

 Missing skids replaced with 'oversize' feet.

 Replaced AC line cord

 Originally missing 'Monitor' switch replaced with an original / OEM switch from another GX-630D.

 Power supply CB adjusted to correct 24VDC which enables best performance from Cap motor, Playback and Record amp circuits (slightly low Voltage was originally causing a slight 'low record' situation on the left channel. Also repaired shorted diode on 'Servo' cb.

All three motors test perfectly. Following above adjustments, Reel Start and Stop tested at beginning, middle and end of 7" and 10.5" tapes

 Brakes adjusted on fast wind modes on both 7.5 and fully loaded 10.5 reels from top speed.

 Internal pots, switches and controls cleaned and tested for noise-free function.

 We adjusted the VU meters electronically w/ factory test tone tapes, as well as the internal playback and record levels.

 Deck has been fully calibrated, tested, and found to perform well.

Both spindles in decent alignment. The 'Supply' spindle has a bit of run-out, but nothing that affects performance.

All 4 tape guides rotated 180 degrees to present 'fresh' surface to tape.

 Slight 'flutter' issue was improved by 'truing' capstan more accurately

 'Record' lamps replaced with new 24VDC bulbs

 We also adjusted the reel table heights.

 Heads have virtually no appreciable, visible wear.

Recording tests performed. Heres how it tested at 0dB;
with Maxell UDXL-II tape: 1kHz = ~-2.5dB L&R
with Ampex GM-456 tape: 1kHz = ~+1.5dB L & ~+0.5dB R
with TDK Audua tape: 1kHz = ~-3.5dB L & ~-2.5dB R

Speed tested to 99.8% accuracy with 1kHz factory test tape (meaning 1kHz calibration tape plays back at 1002Hz +/- 1Hz)

  Floor noise measured at >-60dBm

 This Akai GX-630D functions, plays, and records perfectly (and 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).  (Total time investment in refurb / testing ~ 30 hours).
____________________________
Looks FAIR, but is "Ready-to-go"! The very sought after Akai GX-630D Stereo Reel to Reel tape deck. Will play / record stereo 1/4" tapes on reels 5, 7 & 10.5". This is one of the few reel to reel decks we get in that make it to our finished page. Great performer. This one made it through and all functions test great! If you're looking for a reel to reel deck to "actually use" here you go. Only about 25% of the used Reel decks out there can be "practically" restored to working order. Heads have no appreciable, visible wear, check the record test results above, evidence theyre sounding great!
So there's a 'laundry list' of minor, cosmetic issues with this unit, and there's a separate photo collage above that shows them, but here's the list;
Wood grain, vinyl wrapped case has numerous chips / dings, and a nice cigarette burn on top. The face has crescent reel flange marks (those are actually fairly common on many machines). The pinch roller is missing it's hub cap. There some scratches under the capstan. The head cover has numerous scratches and some 'yellow' staining (wouldn't come off). There's some light corrosion under the meters on the aluminum bezels. The 'supply' reel spindle has the outermost, end of it's tip chipped off (still functionally fine). The rear vent panel, has been replaced with a non-original one. The originally missing skids have been replaced with oversize feet (actually a 'good thing').

 As touched on above, the heads are in beautiful condition. Spindle tridents are in great condition with strong springs, and no cracks, splits or broken spines.

Akai GX-630D Features include:

- 4-Track / 2-Channel
- Up to 10.5" Reel Capacity (compatible with standard / normal 4-Track / 2-Channel tape format, but could do some justice to 4-Track / 1-Channel or 2-Track / 1-Channel)
- 3 Heads for instant monitoring of tape levels while recording
- Three Motors for trouble free performance (has a lot to do with it still being a viable piece of gear due to less rubber parts)
- Direct Drive (no main drive belt to worry about)
- Auto-Reverse for Playback (when using tape with "auto-reverse" sensing foil) (Forward Recording, with forward & reverse playback)
- Dual speeds at 7.5 ips / 19cms and 3 3/4ips / 9.5 cms
- 'IC Logic' / Solenoid Drive Touch Transport control and 'Power Brake' tape handling
- 'Auto-Stop' function
- Spring loaded, Reel table locks (no need for rubber stoppers / clamps)
- Independent Tape type selector
- Separate & dual concentric mic and line level controls
- Monitor Source / Tape selector (for instant monitoring of recording)
- Independent L & R record enable switches
- Left & Right output level controls
- Mechanical tape counter
- 'Reel Size' selector to optimize reel motor back tension and braking
- Dual front mounted 1/4" Microphone inputs
- Variable output level controls for each channel

-True "WORLD AC POWER" allows unit to be operated on 50 or 60 Hz AC and will select voltages from 110v, 120v, 220v and 240 volts AC input.


Original Akai GX-630D Specifications:

Heads: 3 (GX Record, GX Play and erase)
Motors: Direct drive capstan; 1 (AC servo motor)
Reel base drive motors; 2 (eddy current type)

Tape Speed: 19cm/s (7-1/2ips), 9.5cm/s (3-3/4ips) 0.7%
Wow and flutter:
< 0.06% WRMS (19cm/s / 7.5ips)
< 0.09% WRMS (9.5cm/s / 3.75ips)
Signal to noise ratio:
>57dB @ +6VU
THD:
<0.5% @ 1kHz & 19cms
Frequency response:
@ 19cm/s / 7.5ips 30Hz to 25,000Hz 3dB)
@ 9.5cm/s / 3.75 ips  30Hz to 19,000Hz 3dB
Crosstalk:
>55dB / mono
Erasing ratio:
>70dB
Recording bias Frequency:
100kHz
Headphones; 50mV / 8Ω, 1/4" / 6mm diam. jack
Fast Wind Time w/ 2400' tape:
120 sec.


As stated earlier we have completely gone through it cleaning, lubing, adjusting, demagnetizing and testing everything. Plays and records perfectly, AGAIN, records ~0 to -3.5dB @ 1kHz depending on what type of 'Quality' tape you use. Lesser quality tapes will likely result in drastically lower levels!

These are great machines. I have had this one myself for years. It's a blast to put on a BIG 10.5" reel with Pink Floyds, "Dark Side of the Moon".
Also includes our normal accessory kit that includes a 'Play-Back Demo' made on the deck, a 7" plastic take-up reel, and a couple of other assorted 7" tapes to play with.
Includes a pdf / 'e-copy' download of the Akai GX-630D Owners manual, and if desired, a copy of the Akai GX-630D Service manual. Measures 17.5" wide x 9.5" deep x 15.5" high and weighs 42 lbs unpacked. Includes our standard 90 day limited warranty.
Akai GX-630D Reel to Reel Tape Deck
Cond. 7.5

(due to cosmetic issues)

SOLD 2/3/2021
SHIPPED TO DAVID IN MARYLAND


(Reels shown in photos are not included, but we sometimes / occasionally have them for sale. Inquire at time of order.
However, all of our decks will come with 2x tapes for testing 'Playback' and 'Recording' as well as a 7" 'take-up' reel, and RCA patch cables for connection to your system)

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

 

 

 

 

  

            


    

NEW LISTING 12/19/2020
(Click on above thumbnails to enlarge photos)
CheckMarkSmall_web.jpg (792 bytes) warranty
RESTORED / REFURBISHED / FULLY SERVICED
TEAC REEL TO REEL TAPE DECK
TEAC A-2340R
#...4841
4-TRACK / 2 or 4-CHANNEL STEREO / 4-TRACK / 1-CHANNEL MONO
STEREO OR QUADRAPHONIC
"SIMUL-TRACK" DOES 4 TRACK "HEADS-UP" RECORDING (meaning ALL four tracks at once)
3-HEAD / 2-SPEED / 3-MOTOR
AUTO-REVERSE
7" OR 5" REELS
REEL TO REEL 
1/4" TAPE DECK

SOLD 12/21/2020
SHIPPED TO JOHN IN OREGON


Our technician has EXTENSIVELY gone through and 'Certified' this unit.

 
We have completely and extensively gone through the mechanicals and electronics of this unit.

 Entire transport was disassembled down to the chassis, and every mechanical part was disassembled, cleaned, re-lubed and reassembled including; Both Tape Lifters, Pinch Roller Pivot Arm, EOT Sensor Arm, Left Tape Tension arm mechanism, Capstan Motor (clean and re-lube), Capstan and flywheel shaft removed cleaned / re-lubed (pretty much every moving part)

 Tape Tension arms disassembled, cleaned and re-lubed, and their springs adjusted




 Originally 'Frozen' pinch-roller 'pivot' mechanism heated for removal, completely disassembled, cleaned and re-lubed,

 Capstan / flywheels removed, bushings and axels cleaned and re-lubed and flywheels burnished

 Capstan burnished

  Rubber pinch roller removed and re-conditioned



 MAIN drive belt reconditioned and re-installed

 Brand new counter belt, #152 installed (FYI; requires removal of TU reel table trim, Top front Trim, and dismounting of Power Transformer)

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

 Brakes adjusted on fast wind modes at ALL points thru a tape. It's a fine line between having the brakes actuate with too much tension, 'abruptly' stopping the tape (risking stretching / breaking of tape) or too loose (allows tape to 'dump'). (VERY difficult to do on this series). Brakes optimized for 7" reels.

 Re-lubed all 3 motors (all have 'oil tubes')

 Fabricated new 'oil slinger' for capstan shaft

 Back tension adjusted on both reel motors.

 All three motors test perfectly. Following above adjustments, Reel Start and Stop tested at beginning, middle and end of 7" tapes

 Internal pots, switches and controls cleaned and tested for noise-free function (initially, of course, had typical static / noise which is to be expected in an 'un-serviced' deck after 35+ years).

 Cleaned all 'user' slide switches and control pots

 Checked VU meter lamps / bulbs

 Power supply checked / tested for proper "23VDC" output and for 'ripple' on O'Scope.

 We adjusted all  four VU meters mechanically and electronically w/ factory test tone tapes, as well as the internal playback levels for both directions independently and record levels.

 Both spindles in perfect alignment.

 We also adjusted the reel table heights for average reel flanges.

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

 Playback and Record Head alignment / azimuth was adjusted for peak performance with factory test tone tape and oscilloscope.

 Entire deck detailed inside and out cosmetically




 Speed tested to 99.6% accuracy following refurb (meaning that our 'verified' 1000Hz test tape now plays back at 1004Hz).

 Adjusted* to record VERY WELL using Fluke8060A allowing proper "DBV" measurements! Biased for Ampex GM 456 studio tape with the following results w/ Output control ~"2:00 PM":
1kHz recorded @ 0dB resulted in PB @ L=~+0.5dB & R=~-1dB
W/ Maxell UDXL-II; 1kHz recorded @ 0dB resulted in PB =~-3dB L&R


* Adjusted BOTH layers of 'Record Amp' circuit board. Most folks trying to service these are not aware that there's a 'top' layer for tracks 1&3 and therefore at best, only get the 'rear channels' / tracks 2&4 adjusted.

 'Real World, DDD CD recorded @ zero dB w/ GM456 Sounded fabulous

 
Floor noise measured at >-60dB w/ blank tape, L&R

 This Teac A-2340R functions, plays, and records VERY WELL (and 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).

Face is beautiful, brushed, Stainless Steel and case is in LIKE NEW condition.

The Teac A-2340R Stereo Reel to Reel tape deck. Ready to GO! This is one of the few reel to reel decks we get in that make it to our finished page. Great performer. If you're looking for a reel to reel deck to "actually use" here you go. Only about 25 % of the used Reel decks out there can be "practically" restored to working order. This one made it through with flying colors after about 19.5 hours of bench time.

The deck tests great! Looks and sounds great too! We have completely gone through it. Will play 5" & 7" reels (would play small 2-5" to 3" as well).

Teac A-2340R Features include:

- 4-Track / 4-Channel / Quadraphonic, 4-Track / 2-Channel Stereo OR 4-Track / 1-Channel, head stack / tape format
- "SIMUL-TRACK" DOES 4 TRACK "HEADS-UP" RECORDING (meaning ALL four tracks at once)
- 3 Heads for instant monitoring of tape levels while recording
- 3 Motors for trouble free performance (has a lot to do with it still being a viable piece of gear due to less rubber parts)

- DURABLE AC powered capstan motor (lasts decades longer than DC capstan motors of the 'later' models)

- Solenoid tape transport for "Touch" control
- Analog tape counter
- Auto-Reverse capable with 'sensing foil' installed (on correct side of tape)
- 'Pause' control
- Dual speeds at 7.5 ips / 19cms and 3 3/4ips / 9.5 cms
- Four Separate dual mic and line level controls
- Four 1/4" front mounted mic inputs
- Four Input & Four Output RCA connectors
- Four Source / Monitor selectors
- Four Output level controls
- QUAD analog VU level meters
- Dual / Front-Rear 1/4" front mounted headphone outputs (works w/ 'Quadraphonic' headphones as well)
- Four Dual position tape REC Bias type selector
- Spring loaded tape hub spindles (no need for rubber reel retainers)


As stated earlier we have completely gone through it cleaning heads and all else, lubing, adjusting, reconditioning pinch rollers and other rubber parts, demagnetizing heads and entire transport and testing everything. Tape speed tested and resulted in 99.4% accuracy using a 1000 Hz test tape. Plays and records Exceptionally well (and we really put them through the paces, testing both with well mixed CD material and CD test tones looking for correct head Azimuth, tape speed accuracy and making test recordings). Pinch rollers and heads all in GREAT condition!!! Face is made of beautiful, brushed, stainless steel and looks great. Very clean and looks near new. Unit looks GREAT! 

Teac A-2340R Specs / Specifications from the owners manual as follows:

Head / Head-stack Track Format: 3 heads (4-track / 4-Channel, 4-Track / 2-channel or 4-Track / 1 Channel
Head / Head-stack Type: Ferrite Erase and 'Permalloy' PB and REC
Motors: 1x Dual-Speed, 4/8 Pole Hysteresis Synchronous Capstan Motor & 2x Eddy Current Induction Reel Motors
Reel Size: 5 & 7 (5 reels may not brake correctly as deck is optimized for 7 reels)
Wow and Flutter: 0.12% @ 7.5 ips & 0.15% @ 3.75 ips
S/N ratio: >/=48dB @ 7.5ips &
 >/=46dB @ 3.75 ips
THD: ~1% @  1kHz & 19cms
Crosstalk:
</=35dB @ 100Hz
Channel separation:
>/=45dB @ 1kHz
Erasing coefficient:
>/=60dB @ 7.5 ips
4 VU-meters: dB (-20 to +3)
Line; 100mV /100
Bias Frequency: 100kHz (5kHz)
Output Level Reference / Maximum: Line; .3V / 10kΩ
Headphones; ~50mV / 8Ω, 1/4" / 6mm diam. jack
Fast Wind Time: 90 sec for 1200'

This is a GREAT looking deck and is mounted in the originally, optional, 'Walnut wood grain Formica' side panels with no chips, dings, scuffs or really anything! The entire deck essentially looks NEW! 
Again, following above extensive tech work, it works fabulously too!!!
All of our restored / refurbished reel to reel decks come with a 7", plastic take-up reel, a 'known good' 7" tape for initial testing of playback, and a 7" tape you can record onto, all to assist you in becoming familiar with the operation / function of your new reel to reel tape deck.
Measures 17.3" wide x 18.75" tall x 8.5" (from tip of back feet-tip of hubs) deep and weighs 44 lbs unpacked. Comes with an 'e-copy' / pdf download of the TEAC A-2340R owners / operations manual & service manual. Includes our standard 90 day limited warranty.

Teac A-2340R
Cond. 8.5

SOLD 12/21/2020
SHIPPED TO JOHN IN OREGON


(Reels shown in photos are not included, but we sometimes / occasionally have them for sale. Inquire at time of order.
However, all of our decks will come with 2x tapes for testing 'Playback' and 'Recording' as well as a 7" 'take-up' reel, and RCA patch cables for connection to your system)


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

 

 
 
  

 

NEW LISTING 12/19/2020
(Click on above thumbnails to enlarge photos)
CheckMarkSmall_web.jpg (792 bytes) warranty
RESTORED / REFURBISHED / FULLY SERVICED
SONY REEL-TO-REEL 1/4" STEREO TAPE DECK
SONY TC-377 / TC377
4-TRACK / 2-CHANNEL
3-SPEED / 3 HEAD (F&F HEADS!)
"LOCKING SPINDLES"!!!
3"- 7" REEL CAPACITY
#...4220
Circa 1972-77

SOLD 2/9/2021
SHIPPED TO MICHAEL IN ARIZONA


Of the many Reel to Reel Tape decks built by Sony, especially from the late 1960s and into the early 70s, this has always been one of our favorite machines for Features, Build quality (that by luck, lends itself well to restoration 50 years later), solid and most importantly DEPENDABLE performance, and consistent sound quality.

 
Our technician has EXTENSIVELY gone through and 'Certified' this unit.

 Entire transport was disassembled down to the chassis, and every mechanical part including head block assembly, was cleaned of "varnished" lubes and re-lubed as well as the always at issue on most Sony's of this era, Pinch Roller plunge assembly, re-lubed and reassembled.

 All Drive and counter belts replaced for trouble-free service. Rubber pinch roller has been reconditioned, as well as all three internal drive tires / wheels for positive grip, capstan burnished.

 Supply (left) reel spindle lock replaced from another unit we purchased for that and a couple other parts as the original had a small, almost invisible crack in it.

 Both reel hubs / clutches removed, disassembled and cleaned.

 All hub brake pads have been replaced, and their bearings re-lubed and adjusted on fast wind modes also.

 Motor has been re-lubed as well.

 Motor 'cooling fan' repositioned for quieter operation

 Internal voltage is self regulated DC and values were verified.

 All Internal & External pots, controls, & switches (including the linear 'record' switches) cleaned and tested for noise-free function.

 Both spindles in perfect alignment (originally were not, and were off a few degrees from perpendicular).

 We also adjusted the reel table heights for tighter fitting reels, and no 'flange rub' by adding a layer of rubber under the original table mats

 Pinch roller reconditioned / re-surfaced.

 Mains AC cord replaced

 Power supply board tested to it's intended +25VDC. We had full voltage to the record amplifier and was able to adjust record amp to intended levels.

 New VU meter illumination lamp installed (#25-090) and both record indicator lamps test fine.

 Internal 'Line Level', 'Bias', 'Record-Level', 'Record EQ' and 'PB' micro-pots cleaned EXTENSIVELY and levels adjusted with proper test tapes.



 Heads were cleaned and de-magnetized as well as the entire transport.

 Ferrite and Ferrite heads all in great shape, with many years of performance left in them. (technicians note: "heads appear 'un-used'. They're the best we've ever had on a deck and look NEW!")

 Head alignment / azimuth has been checked for peak performance with factory test tone tape and oscilloscope at 100Hz, 1kHz and 10kHz.

 Both level meters adjusted for even playback level w/ factory test tone tape.

 Floor noise tested to -60Dbm w/ fresh, blank tape on PB.

  Plays and Records GREAT both channels


  Records GREAT @ 0dB / 1kHz on High Bias tape (Maxell UDXL) w/ L=~+1dB and R=~+2dB, however, there is an issue with, random 'low volume' 'artifacts' that appear on one channel during recording. We noticed it when recording 'zero' signal on blank tape, but it's there. I'm the only one here who noticed it, but during very quiet passages, you might notice it when recording.

 Speed checked once 'warmed up', to 98..91% accuracy. (Meaning a 'factory' 1kHz tape plays back at 1011Hz. (tech note: has Sony 60Hz / #0 motor pulley installed from factory)

 Internal cabinet braces re-worked / re-glued.

 Following the above procedures, entire unit was detailed inside and out

Again, Pinch roller and Heads all in GREAT condition.

(Total time investment in refurb / testing
~ 21 hours).
Cosmetically in fabulous condition!
  ____________________________

   
GREAT performing Sony TC-377 1/4" Open Reel to Reel stereo tape Record / Play deck and has all 3 consumer speeds! Good for reel sizes up to 7" in diameter. Great for burning your tapes to CD or Hard Drive or for making new tapes. Also great for having fun in your project recording studio.
As stated earlier our technician noted that the heads were in essentially new condition. He further stated on the work sheet, "overall, the deck shows little use, and was remarkably, actually functional prior to tear down." (a 45 year old deck that still functions prior to a restoration, would be classified as "remarkable")

Sony TC-377 Features include:
   
- Triple speeds @ 7.5 ips / 19cms, 3 3/4ips / 9.5 cms and extra long 1 7/8 ips / 4.75 cms
- 3-Heads for instant monitoring of tape levels / record quality while recording
- Plays up to a 7" reel as well as 3" & 5" reels
- Playback / Recording of either stereo or mono tapes
- "F&F" Ferrite & Ferrite Heads (super hard heads to prevent un-even headwear and maintain a perfectly parallel gap for preserving top end in recordings)
- Separate L & R Signal Input level controls
- Separate L & R Microphone level controls
- Auto-Stop
- Dual analog VU meters for monitoring Playback and Record levels
- "Sound-On-Sound" capable w/ independent L & R record Source / Monitor engage switches
- Tape 'Echo' effect capable
- Built-in Tape Type selector for normal or "Low Noise / Extended Headroom" tapes
- Dual front mounted 1/4" mic input jacks
- 1/4" Stereo Headphone jack
- Mechanical Tape counter
- Variable Output level control located near I/O ports
(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)
- Lockable Pause "Inst-Stop" lever
- Mic Attenuator selector
- RCA inputs and outputs
- Spring loaded tape hub spindles (no need for rubber reel retainers)
- Can be mounted in cabinet for 'vertical' orientation (as currently installed) or inverted for 'horizontal' use.
- 3-Prong, Grounded AC cord

   
Original Sony TC-377 Tape Deck Specifications:

 
(All with Sony SLH-180 type tape)
 Power Requirements:  117 VAC, 30 watts, 60 Hz     

 Capstan Drive Motor Type: Induction
 Tape Speed: 7.5 ips / 19cms, 3 3/4ips / 9.5 cms and extra long 1 7/8 ips / 4.75 cms mechanically switched with single lever, with automatic switching for equalization changes       
 Reels: 1/4" tape on 7 inches ог smaller
 Recording Format: 4-track stereophonic оr monophonic
 Frequency Response: 30-25,000 Hz @ 7 1/2ips.
                                  30-20,000 Hz @ 3 3/4 ips.
                                  30- 9,000 Hz @ 1 7/8 ips.
 Signal-to-Noise Ratio: > 55 dB @ 7 1/2 ips w/ high bias tape
 > 52 dB @ 7 1/2 ips w/ normal bias tape
 Flutter and Wow: < 0.09% @ 7 1/2 ips.
                          < 0.12% @ 3 3/4 ips.
 Level Indication: Dual Analog VU Meters
 Record: Calibrated to NAB standard reference level

 Playback Time: With 1,800' tape
 (4-track stereo)  (4-track mono) 7 1/2 ips  1 hr. 30 min.                  / 3 hr. & @ 3 3/4 ips. 3 hr. / 6 hr.
 Inputs: Dual 1/4" Microphone Input Jacks and dual RCA jacks
 Outputs: Dual RCA jacks
 Output Impedance: 10kΩ
 Line Input Sensitivity: .06 Volts
 Line Input Impedance: 100k
 Bias Frequency: 160 (kHz)
 Rewind Time w/ 1200 Tape:- 120 sec
 

Again, following the above stated bench work / testing, our technician has 'Certified' this deck and it is an great performer sonically and mechanically primarily for 'PLAYBACK', noting the above mentioned issue with 'Recording' on one channel. This deck has had typical restoration. It's pretty much had the clock rolled back 45+ years on it. With the exception of a small veneer chip on the front, right, lower corner, (see photos above) the units looks near new. Again, over and above our standard restoration, this deck has virtually NEW heads!
Machine is READY TO GO! Would make a great deck for any one needing a deck to do tape to CD or Hard Drive transfers of reel to reel tapes or for making NEW reel tape recordings. Comes with an 'e' copy / pdf of the Sony TC-377 owners / users manual. Includes a take-up reel. Includes our standard 90 day limited warranty. Measures 16.25" wide x 8.5" deep x 15.75" tall and weighs 24 lbs unpacked.
(Reels & tape shown in photos not included. All are sometimes available separately if you need them) 
SONY TC-377 REEL TO REEL TAPE RECORDER / DECK #...4220
Cond. 8.5+

SOLD 2/9/2021
SHIPPED TO MICHAEL IN ARIZONA


(Reels shown in photos are not included, but we sometimes / occasionally have them for sale. Inquire at time of order.
However, all of our decks will come with 2x tapes for testing 'Playback' (actually made on this deck) and 'Recording' as well as a 7" 'take-up' reel, and RCA patch cables for connection to your system)

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

 

 

 

 

 

 

 

   


We've moved most of the "SOLD / ARCHIVED" items to their own page.
Click ........HERE.



 


CLICK HERE FOR OUR REEL TO REEL TAPE & ACCESSORIES
 
 
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**
"(actual as measured)" refers to original test results done by Hirsch-Houck Laboratories upon test release of product when new. Current "aged" specifications / performance may of course vary from that.

 



 


On a side note: While we deal in many Open Reel / 'Reel to Reel' Tape machines, have recently seen folks making references to 'Real to Real' & 'Reel to Real' tape recorders / decks...
We think this might be referring to some sort of 'cloning machine' or 'replicator' such as shown aboard Star Treks' Enterprise ship in the 'Next Generation' and 'Voyager' series.
...Just throw'in it out there.

 


 

 

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and changes may not be posted to web immediately
.
 

20-30% restock fee / service charge applies to all returns for refund depending on item specifics & / or individual distributor / drop shipper policies.
See our "
Warranties / Returns" page via the link below for more details.

$20. Minimum Orders

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