NEW LISTING 12/15/2020
 (Click on above thumbnails to enlarge photos)  warranty
VINTAGE, FULLY SERVICED / REFURBISHED / RESTORED
VINTAGE AKAI AUTO-REVERSE CASSETTE TAPE DECK
AKAI GXC-730D
With 'AUTO-REVERSE' AND DOLBY NR
and REAL "VU" METERS
#...0321
Circa early 1976-79
Made in Japan
for sale

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


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

ü Internal DC power supply tested

ü Capstan motor disassembled, cleaned and re-lubed.

ü Both Flywheel belt surfaces solvent cleaned

ü Bronze Flywheel bushings solvent cleaned

ü Both Flywheel thrust pads cleaned

ü Capstan burnished

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

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

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

ü 'Non-locking' Pause control disassembled, cleaned and re-lubed

ü Rubber pinch rollers have been reconditioned

ü Tape well door 'eject' springs re-worked / repaired

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

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

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

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

ü Both VU meter illumination lamps replaced.

ü Both hub spindles in perfect alignment.

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

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

ü Replaced Erase Head, reed switch with OEM from another of the same model (very difficult to deduce and locate as source of issue with deck not erasing correctly)

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

ü Tape Counter Function tested

ü Plays perfectly and records well with 1kHz, recorded 0dB playing back @ L=-2dB & R=-3.5dB (between TDK and Maxell tapes). With DDD CD we experienced ~ -5 to -6dB, but great, overall sonics! (we really put them through the paces, testing both with well mixed, recently recorded CD material and CD recorded / factory test tones looking for correct head Azimuth and speed accuracy).

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

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

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

Only issue still remaining is that "Rewind" is noisy on some tapes as it nears completion.

ü Deck has had just over 18.5 hours of restoration work done.

Face is made of beautiful brushed aluminum, and overall the deck is in NEW cosmetic condition. Following the extensive restoration, we did 'test recordings' of a 'ddd' CD on 6 tapes; Sony Normal Bias, Fuji Normal Bias, TDK Normal Bias, Maxell Normal Bias, TDK 'SA' High Bias, and Maxell 'XL-II' High Bias. We found that for Normal and High Bias, of those tapes tested, both the "Maxells" performed VERY well on this particular deck.
Total technician time to restore ~18.5 HOURS!
  ____________________________
  
Handsomely designed, and classic looking Akai GXC-730D, Auto-Reverse cassette tape deck. Features Piano-Key transport, Auto-Reverse, & Dolby B. Great deck for most systems and uses. One of the 'Biggest' cassette decks ever made.

AKAI GCX-730D Features include:
  
- 3-Mode Auto-Reverse ('Manual' reverse as well of course)
- Huge drive Motor
- Classic 'Piano Key' transport w/ Solenoid assist results in 'Soft Touch operation
- Dolby noise reduction built-in for recording and playback
- Akai's A.D.R. (automatic distortion reduction) changes the recording equalizer characteristics according to the signal level of a certain frequency band to achieve low distortion over an extended frequency range.
- Auto-Limiter (if selected) to limit 'over / peaks' on 'high energy' recordings. Great when recording in 'Live' situations.
- Tape Type selector for Normal, Fe-CO2, & CrO2 tape
- Dual, Large "VU" signal level meters
- "Peak" LED level indicator that kicks in at +7dB
- Manual Record Level with independent L&R control
- Variable Output Level control (one of the most important features on a deck in our opinion. Allows you to match volume level of other sources, allows adjustment for 'best' pre-amp input to avoid distortion, allows you to change the volume of the deck if you have it located remotely from the pre-amp / receiver as I do, and many other applications)
- Dual front mounted 1/4" mic input jacks
- Front mounted Stereo Headphone jack
- Analog Tape Counter w/ "Memory Stop"

AKAI GCX-730D Specifications:

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

There's just something about the feel of 'original piano key' tape transports. This one especially has a great "feel" to it. Like you're engaging some 'huge' mechanism internally. The 'Auto-Reverse' is very 'precise' in it's motion.
Again, we have completely refurbished and thoroughly tested this deck, with multiple recording tests (as stated previously). Cosmetically, it's in essentially NEW condition! Also great for transferring your tape collection to CD, Hard-drive or MP3. Includes original box and packing. Comes with an 'e-copy' / pdf download of the Akai GXC-730D owners manual and color brochure.
Measures 17.3" wide x 11.9" deep x 6.9" tall and weighs 26.5 lbs unpacked. Comes with our 90 day limited warranty.
AKAI GCX-730D
Cond. 9.5
$789.

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

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

 

 

               

DUAL 1242

 

      

NEW LISTING 2/26/2020
REFURBISHED / SERVICED
VINTAGE PIONEER CASSETTE TAPE DECK
PIONEER CT-F600
'BLUE METER' SERIES
CIRCA 1979-80
MIJ
"WORLD AC POWER" ™
for sale

ü We have gone through this unit quite some time ago for ourselves to use, and just ran it through the shop again which involves disassembly of the transport, cleaning inside and out, DISASSEMBLING, cleaning and re-lubricating all internal mechanisms and the balance of efforts listed below (difficult on this deck!!!).

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

ü Main Capstan / Flywheel belts replaced during original service

ü Counter belts replaced during original service

ü Idler tires replaced during original service

ü Idler tires reconditioned during this most recent service

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

ü All meter lAmps and LED indicators working fine.

ü Both hub spindles in perfect alignment.

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

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

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

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

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

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

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

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

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

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

ü Tape Counter works well

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

ü Floor noise measured at -60dBm

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

Total technician time to restore ~19++ HOURS! (YES, OUCH!)
  ____________________________
  
This deck is the commensurate deck for other Marantz components such as the Marantz Escotec SC-7, SC-8, SC-9, SC-500 SC-2000 Pre-Amps, the SM-8, SM-500DC, SM-2000 Power Amps, EQ-20 Graphic Equalizer, PM-8, PM-450 or PM-730 Integrated Amps, ST-500 Tuner and many others. I sold all of those components when they were new for a Marantz dealer. If you're building that system (or already have most of that system) and need the matching cassette deck (for Playback), then here you go. This one is probably as good as it's going to get, as I don't know of any tech's who would be willing to bring one any further to completion

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

Marantz SD-3510 Specifications:

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

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

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

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

          NEW ADDITION 12/23/09
  (Click on above thumbnails to enlarge photos)
  warranty
BENCHED, BURNED-IN & WARRANTED
SONIC HOLOGRAPHY, STEREO PRE- AMPLIFIER
CARVER C-1 / C1 PRE-AMP / CONTROL AMP
#...8261
(same pre-amp we have used for the last decade+ here at Oak Tree Vintage on our 'Audition Room System')
Circa 1981-89
MADE IN AMERICA
for sale

We have completely gone through this unit, cleaning inside and out including all contacts, switches and controls. This is difficult to do on these as it necessitates the removal of the face and associated circuit boards. All I/O internal er points, "re-flowed" for trouble-free performance. Unit looks great! All functions tested for perfect operation. All inputs tested and both side produces clean and even sine waves! Checked with O-Scope. No power supply hum of any kind. It's dead silent!
   
Carver C-1 Features include:
   
- Carver's "SONIC HOLOGRAPHY" built-in!
- FULLY PARAMETRIC 2-Band EQ / Tone Controls. Bass centers variable from 31.5Hz to 800Hz and treble variable from 800KHz to 20kHz. "Q" variable wide to narrow. Amplitude variable ± 12 dB cut / boost (most tone controls only range ± 10 dB)
 - Absolute "Tone Bypass" for purest signal route
- Variable Loudness. A mainstay trademark of Yamaha Pre-Amps and Receivers. Allows for continuously adjustable loudness contour.
- Infrasonic (Subsonic ) Filter for reducing turntable rumble / feedBack, direct drive turntable motor noise etc.
 - Instant -20 dB Audio Level Muting
- Dual tape monitors (Tape Monitors can also be used for Tape / Video / CD / DVD / VCR / DAT / MP3 / iPod® / iPhone® / iTouch® / iGadget / MP3 / XM® / SIRUS® etc. etc. as well as for CDR)
 (note; tape monitors combined with source selection, thus any external signal processors are relegated to the Pre's "Output" to Power Amp "Input" signal chain)
 
  - Bi-Directional dubbing
 
- AUX Input (can be used for Video / CD / DVD / VCR / DAT / MP3 / Video / iPod® / iPhone® / iTouch® / iGadget / MP3 / XM® / SIRUS® etc. etc.)
 
- DAD Input (can be used for Video / CD / DVD / VCR / DAT / MP3 / Video / iPod® / iPhone® / iTouch® / iGadget / MP3 / XM® / SIRUS® etc. etc.)
 
- Tuner input (can be used for Video / CD / DVD / VCR / DAT / MP3 / Video / iPod® / iPhone® / iTouch® / iGadget / MP3 / XM® / SIRUS® etc. etc.)
- Phono / Turntable input with rear located selectable gain @ either 0 or -10dB
 - Phono / Turntable input with selector for either MM (Moving Magnet cartridge) or MC (Moving Coil Cartridge) (this feature alone could be worth hundreds of $$ if you are going to utilize a Moving Coil turntable cartridge)
 - Cartridge capacitance selector on the MM side for 220 pf / 2/47kΩ, 330pf / 47k , 220pf / 47kΩ, 100Ω, or on the MC side 1kΩ or 100Ω
  - Record Out selector with bi-directional tape dubbing controls. (Separate "Record Out" allows recording from one source while you listen to another)
 - Global Stereo / Mono selector
 - 24 Karat Gold plated I/O jacks on the Phono, DAD and Main Outputs to remain corrosion free, thus insuring the best audio signal transfer.
- 6 AC outlets ( 5 switched, 1 un-switched) for a total capacity of 600 Watts
 - 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.
   
Carver C-1 Original Specs:
   
Design type: 2 Channels, Analog operation
Frequency Response: 3Hz-80kHz / -3dB
Total gain: 25.0 dB
S/N on any 'non-phono' input; 96dB IHF weighted w/ 2V input level
Input impedance: 100k Ohms
Output impedance: 600 Ohms
THD; >0.05% at full rated power
Infrasonic Filter (subsonic filter); 18dB/Oct below 20Hz

PHONO SECTION SPECS:
Freq Response: deviation of ±0.25dB from RIAA 'Extended Curve'
Phono MM Maximum Input Level: 100mV
Phono MC Maximum Input Level: 15mV
S/N on Phono MM w/ 5mV signal: 83dB
S/N on Phono MC w/ 5uv signal: 77dB
Phono Capacitance: Selectable on rear panel 0pf / 180pf / 390pf
 
   This is a very high quality control / pre-amplifier for most any system. If you need high level sonics, the Yamaha C-80 is the ticket. Will work with most any power amplifier, tube or solid state. After bench work the unit looks, performs and sounds great! Besides the fact that it's a Yamaha, this unit stands in a class by itself due the the "fully parametric" EQ and it's versatile "phono" section. Again, great where you need power amp control, with super pure tone routing. Unit measures 17" wide x 3.25" tall x 14.5" deep and weighs 7 lbs unpacked. Includes our standard 90 day limited  warranty.
CARVER C-1
Condition 9++++++++
$649.

Design type: 2 Channels, Analog operation
Frequency Response (non-phono input): 1-250kHz +0 / -3dB
Maximum Output Level: 5V
THD Tuner, AUX and Tape, 20-20,000Hz: 0.004% @ 1V output
Signal / Noise Ratio: 108dB!!! @ Tuner, Aux, Tape A/B inputs
Input Sensitivity AUX / Tape @ RCA's: 150mV @ 47k Ω @ 1kHz for rated output
Output AUX / Tape @ RCA's: 150mV @ 47k Ω
Subsonic Filter: >-3dB @ 30Hz, 6 dB/Oct
Loudness Control: 0-+9dB continuously variable (-30dB Vol Level)

PHONO SECTION SPECS:
Freq Response: RIAA Standard curve 30Hz-20kHz w/ RIAA deviation of ±0.3dB
S/N: >87dB MM, >70dB MC
THD Phono MM or MC, 20-20,000Hz: 0.005% @ 1V output
Input Sensitivity (nominal) MM: 2.5mV @ 47kΩ
Input Sensitivity (nominal) MC: .25mV @ 100Ω
Phono Overload for MM: 200mV yields THD 0.005% @ 1kHz
Phono Overload for MC: 15mV yields THD 0.005% @ 1kHz

    

 

dod 680

   

 

BEHRINGER HA4700

  

   



YAMAHA RX-120

  

  

PROTEUS 1-XR

   

    

HARMAN KARDON HK710
TUNER

CARVER TDR-1550


 

         

PIONEER SX-980

         

YAMAHA CR-2040

    

 

WESTERN ELECTRIC 'ROLL TOP DECK' PHONE

 

BUTCHER BLOCK 

REALISTIC STA-65C PARTS UNIT

(note: Vol caps NOT interchangeable with STA-120. The fader levers are too wide. Modification would be difficult)


 

       

DENON AVR-1709

  

PIONEER F-99X

    

MARANTZ SR6200-U2B

    

SONY STR-DH700

       

Sony STR-DE875

 

     

YAMAHA TX-70
MAY HAVE ALREADY BEEN ???

  

KEN-TECH T-2018 CLOCK

- 

(Click on above thumbnails to enlarge photos) 
PRE-OWNED
BUFFET CLARINET
MODEL B12
INTERMEDIATE STUDENT Bb CLARINET
for sale
This clarinet is modeled after the Famous Buffet Grenadilla wood clarinets from the 'old day's'. When I worked for a 'full-line' music store thru the 1990's, we would periodically have a 'vintage' Buffet come thru and they never hung around long once serviced for re-sale. It is what most clarinet players asked for. That and Yamaha's.  This is a Buffet B12 clarinet, again, designed after the 'vintage' horns for the student / beginner and into the intermediate market. The Buffet B12 clarinets are made from ABS resin with an appearance and sound similar to that of genuine Grenadilla wood. These models are lightweight, strong and easy to clean perfect for even very young players. The Buffet B12 model has a very attractive and traditional design with nickel-plated body rings, straight key work and a traditional bell ring. The body is buffed to give the appearance of wood. The nickel silver key work is cold forged and induction ered, providing greater stability, precision and quality. The B12 model is mounted with double fish skin pads which ensure excellent sealing.

 Features:
- Nickel plated keys, body rings & plated bell rings
- 65mm barrel
- 14.65mm poly-cylindrical bore
- Arched key cups (same as R-13 model)
- Staggered trill keys (same as R-13 model)
- Blue Needle Springs
- Adjustable 3-position thumb rest
- Ergonomic key design: Improved playing comfort like that of a professional clarinet
- Pointed needle springs for quality key action
- Undercut tone holes for improved tone quality and faster response
- High quality Double fish skin pads enables air tightness and are long lasting
- Blow-molded, hard shell case

Mouthpiece Assembly with Ligature, Cap and Mouthpiece

-           Cork Grease

-           Cleaning Swab

This clarinet retails for $925.00 (US).

    



GEMINI XL-100

INFINITY ENTRA SUB TWO

  

Speaker Stack for restaurant

 

    

ADVENT MINI II INDOOR / OUTDOOR

     

NEW LISTING 10/23/12
 (click on above thumbnails to enlarge photos)
  warranty
 PRE-APPRECIATED
 INFINITY
 STEREO SPEAKERS
 STUDIO MONITORS SM-152 / SM152 

    

ADVENT LAURETE

             

PSB 1000




 

      

(click on above thumbnails to enlarge photos) 
warranty
VINTAGE  
JENSEN
STEREO SPEAKERS
SYSTEM 300
Circa 1981-'85
Made in USA
CURRENTLY HELD FROM SALE
for sale
A bit short in the looks department, but long on sound.
We have completely tested them with both recorded material, PN 20-20k and swept them with our AF generator. These Jensen "System 300" speakers are very accurate and impressive sounding.  Features:

- 9" woofer
- 1" cloth soft dome tweeter
- Acoustic Suspension cabinet design
- 8 Ω

Foam surround on 9" woofer in fine shape with years life left in it before it will need to be replaced. Medium-dark Oak wood grain vinyl wrap finish in decent shape with a few normal scuffs and dings. Nothing too  distracting from overall appearance (see photos). Original brown grills in fair shape as well with normal amount of snags for 15 years old and unfortunately the small plastic Jensen badges are missing. Grills also have minor, light colored staining on lower 1/3 of each. Speakers test and sound great. Each measures 23" high x 13" wide x 10" deep and weighs a 23 lbs unpacked. Includes our standard speaker warranty ( excluding problems due to under / over powering).
JENSEN SYSTEM 300
Condition 7.5
$239. pair
CURRENTLY HELD FROM SALE

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