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

STEREO RECEIVERS
VINTAGE AND USED
 


Vintage & Used Stereo Receivers that have been Refurbished. Brands / models of Vintage Stereo Receivers and Quadraphonic / Quad AM/FM receivers such as Kenwood KR, MCS, Pioneer SX, Sansui G, Sony STR, Yamaha CR and others.


 


 

   

    

NEW ADDITION 2/4/11
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CheckMarkSmall_web.jpg (792 bytes)  warranty
VINTAGE STEREO RECEIVER KENWOOD 'SUPER QUAD' QUADRAPHONIC / 4-CHANNEL / 2-CHANNEL STEREO RECEIVER KR-9940 / KR-9340
 kr9940
#...0541  
Circa 1973-
76

   
"WORLD AC POWER"
 M.I.J. 

 for sale
 
Receiver has had complete service including cleaning everything including all switches, controls and contacts including phono and tape monitor selectors. Capacitor replaced in protection circuit. We also resolved a decoder issue, the aligned the tuner front-end for optimum AM & FM performance as older internal tuner components have always drifted on vintage gear over the years. VERY GOOD TUNER! The all dial & meter lamps replaced with new bulbs for trouble-free service. We also disassembled the power switch and replaced the internal neon lamp (the power switch on this unit actually 'lights' up when the unit is off, presumably to make it easier to find in a darkened room and is off when the unit is on). We also, removed the entire output / heat sink section, removed all the output transistors and applied fresh heat sink compound which should be good for another 30 years now. All inputs tested and both side produces clean and even sine waves into static 8 & 4 ohm loads! No power supply hum of any kind. It's dead silent! All functions test fine.
Following restoration procedures, the unit was ran continuously at medium volume, as all our amplifier / receivers are, into a load with "Loudness" on and both Tone Controls at 10 for 48 hours into a 4 ohm load.
 
 
 
On our test bench, this particular KR-9940, #...0541, amplifiers each produced 23.75 volts  per channel for 70 watts per channel @ 8 Ω via discrete output & 19.74 volts per channel for 97 watts per channel @ 4 Ω via discrete, Metal cased, TO-3 outputs.
(AC draw at idle 0.60A tested)

(Floor noise measured at 2.5mvAC)

 
___________________________

 
  Impressive huge Kenwood Silver-face receiver, surrounded by handsome, real Walnut wood veneer side plates. This unit has about the highest 'KPD-Factor' of any we've had in a long time. What's a 'KPD Factor'? 'Knobs per Dollar! You could also say it has very high 'MPD' and 'LPD' factors as well (you should be able to figure those out now). Features gorgeous, back-lit slide rule analog tuning scale with matching VU meters as well. VERY elegant and IMPRESSIVE unit when lit in a darkened room.
This unit appears to have been marketed under two model numbers. The KR-9940 and the KR-9340
(likely one for North America and the other for the rest of the planet).
From original Kenwood brochures, "
Kenwood KR-9940 can function as a two or four channel receiver, having a built in regular matrix and SQ type decoders....As a four channel receiver the amplification channels work separately, each driving one of four speakers....The semi-complementary directly coupled power amplifiers have wideband and low distortion characteristics which ensure smooth, high-fidelity amplification....Two pairs of speaker terminals are available to permit simultaneous listening at two different places....A double switching demodulator is used in the MPX section to prevent carrier leaks and ensure the best sound quality".
 
Features include:
  

- Quadraphonic (no it's not spelled 'quadriphonic' !!!) / Stereo receiver 
 - Weighted flywheel analog tuning
  
- A, B, Off or A+B Front and Rear speaker positions
  - Separate Front and Rear Bass and Treble controls
- Balance controls allow complete blending between Front and Rear / Left and Right
 - Built-in Hi and Sub filters for reducing 19kHz pilot tone in FM broadcasts, Tape Hiss and the Sub filter for reducing turntable rumble
  - FM muting (separate from Stereo / Mono selector)
  - 'Mode' selector for Stereo / Mono, 2-Channel & 4-Channel modes of 'RM' / 'SQ Logic', or 'Discrete'.
 - Aux inputs
for both Front and Rear (may also be used for Video / CD / DVD /DAT / VCR / MP3 / iPod® / iPhone® / iTouch® / iGadget / MP3 / XM® / SIRUS®  etc.)

  - Dual tape monitors with Tape monitor A also featuring a DIN input as well as the standard RCA I/O's for both Front and Rear
 (Tape Monitors can be used with Video / CD / DVD / VCR / DAT / MP3 / iPod® / iPhone® / iTouch® / iGadget / MP3 / XM® / SIRUS® CDR (CD recorders as well as for inserting signal processors, such as EQ's, Reverbs, Spatial Enhancers / Dynamic Processors, Noise Reduction units, Special Effects units, Time Delays, etc)
 -  Dual Phono / Turntable inputs with Built-In Phono Pre-Amp, featuring 'Phono-2' compatible with 'CD-4' cartridges
  - Loudness control for increasing 'rock-n-roll smile' tone curve at lower volumes
- Dual Meter Level selector
   - Front and Rear 1/4" stereo headphone jacks
   - Rear mounted 1/4" microphone jack (be careful with your speakers if you are going to utilize this!)
  - Tuning window features dual VU meters for tuning and signal strength
  - Quad VU meters for power output level
  - FM Detector RCA output
  -
*Kenwood's KCD-2, CD-4 system, disc demodulator Adaptor slot and includes the KCD-2 adaptor that is often missing on these models
 - Rear located, full barrier strip for external antenna connections
- Rear located main AC protection fuse
  - Triple AC convenience outlets on rear panel with 1 switched and 2 un-switched for a total capacity of 160 watts of accessories

  - True
WORLD AC POWER"
   as it will work on both 50 or 60 Hz AC and voltages from 110-240 volts AC


Original Specs:
  
"The KR-9940 has a 'Direct-Coupled / DC' amplifiers that produce continuous power output of 40 watts per channel min. @ 8 ohms from 20 hertz to 20,000 hertz with no more than 0.5% THD (measured utilizing AUX input)"
 
 POWER / PRE AMP SPECIFICATIONS:
 THD;
0.5% @ full rated power or 0.1% @ 50% rated power @ 1kHz.
 Freq Response of power amp section;
 @ full rated power 20-20kHz
 Power bandwidth of power amp section; 10-50,000Hz ±0dB
 IMD utilizing AUX;
 0.5% @ full rated power / 20-20kHz and 8 Ohms
 Damping factor; 30 @ 8Ω full bandwidth
Dynamic rated Power: 2 x 240 watts @ 8 Ohms or 340 watts @ 4 Ohms
Cont rated Power:
4
x 40 watts @ 8 Ohms / 20-20kHz
4x 44 watts @ 8 Ohms / 1kHz
4x 55 watts @ 8 Ohms / 1kHz


  Hum and Noise;  75dB on AUX / Tape
Input Sensitivity AUX / Tape; 150mV @ 50
  Tape 1/2 Output level, via RCA; 150mV @ 50
  Bass Control;  ±10dB @ 100hz
  Treble Control;  ±10dB @ 10khz
  Low Filter;  -8dB @ 100Hz @ 6dB Oct
  High Filter;  -6dB @ 5kHz @ 6dB Oct
  "Loudness" Contour;  +10dB @ 100hz, +5dB @ 10khz (w/ volume set at -30dB)

PHONO SECTION SPECS:
 Freq Response;
20-20kHz RIAA Standard Curve +/- 1dB.

 S/N;
60 dB
 Input Sensitivity;
1.5 mV @ 50kΩ
 Overload limit;
100 mV w/ 5% THD @ 1kHz

TUNER SPECS FOR FM:
 Freq Response;
20-15kHz
 S/N; > 63db Stereo w/ 1mV input
 AM Suppression; 60dB
 Mono Sensitivity; 1.8 μV
 Capture Ratio; 3.0dB
IF Rejection; 90dB

  Spurious Noise Ratio; 90dB

 THD w/ 100% modulation @ 400Hz, Mono;  0.7%
 THD w/ 100% modulation @ 400Hz, Stereo;  0.8%
Stereo Separation; 40dB at 1Khz & 20dB @ 10kHz
 FM Alternate Channel Selectivity; 50dB

  TUNER SPECS FOR AM:
  Tuning Range;
530-1600kHz
  S/N; > 45db w/ 1mV input
  Useable Sensitivity; 25μV / m with ferrite stick antenna

Image Rejection; 45dB
IF Rejection; 35dB

  Selectivity; 30dB


 Power consumption at max output;
550 Watts. 38 Watts w/ no signal at idle

  

  Again, we have completely gone through this receiver. Everything is in fabulous electrical and cosmetic condition! Looks near new and sounds great! Very nice looking when lit up at night or in a darkened room! Comes with a PDF service manual.  Measures 21.5" wide x 6.5" tall x 14.5" deep and weighs an impressive 47 lbs unpacked. Includes our standard 90 day limited warranty.
  KENWOOD KR-9940 STEREO RECEIVER
  Cond. 8.5
$889. w/ KCD-2 Quadraphonic adaptor installed
*$799. if you don't need the adaptor

 

 



    

        NEW ADDITION 10/12/11
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HUGE & VINTAGE
KENWOOD
       KR-9000G / KR-NINE-G
kr9000g
   STEREO RECEIVER
 #...0989  
 circa 1978
"WORLD AC POWER" ™
   MIJ!

   for sale
   We have completely gone through this unit cleaning everything including all switches, controls and contacts. Extensive cleaning of unit internally. Controls were 'flooded' w/ 'De-OxId' and are quiet (very difficult to do as 'tone' section must be painstakingly removed). Switches such as the 'Function' selector and the 'Tone Bypass' switch were also flooded with cleaner. We also aligned the tuner front-end on both AM & FM bands for optimum performance as older tuner components will have 'drifted' over the years. Replaced 'frayed' section of tuner string then re-tensioned to increase traction & relieve flywheel binding and re-centered pointer to correct dial position. VERY GOOD TUNER! Generally AM reception in a stereo receiver is treated as an 'after thought', but the AM reception on this one is WAY above average. Pulls in stations like an old 'Tube' radio! FM reception also incredible and IMPECCABLY CLEAN!!! We replaced 19 light bulbs, including ALL dial & meter lamps, the dial pointer lamp, the 'Speakers' bulb, 'FM', 'AUX', 'PHONO 1', 'NR MODE' and the timer lamp with new units for trouble-free service. Both power supply filter capacitors removed and independently tested. Only issues are that the 'FM Mute' push switch occasionally must be pushed a second time to 'lock' and there is a 60Hz background hum in the 'Headphone' jacks.
All inputs tested and both sides produce clean and even sine waves into 'brick-wall' 8 & 4 ohm loads! No power supply hum of any kind. It's dead silent! All functions test fine, (with the exception of the timer which still worked (works) fine, but we have 'set default to 'Power-ON' and 'pre-loosened' connector linkage sleeve as it will likely break in the future (almost 100% of the time) from a user applying too much torque at some point. We avoid this likely future issue by disconnecting the linkage on all the Kenwoods that have a timer (can be reconnected if user wishes)). Following restoration procedures, the unit was ran continuously at medium volume, as all our amplifier / receivers are, into a load with "Loudness" on and both Tone Controls at 10 for 48 hours. Total restoration time investment ~14 hours. You will not be disappointed.
   
 From the original Kenwood KR-9000G / Kenwood Nine G' service manual, "80 watts per channel minimum RMS, both channels driven, at 8 ohms from 20-20,000 Hz with no more than 0.03% harmonic distortion"
- However -
   
On our test bench, the internal amplifiers of this receiver #...0989, produced 30 volts per channel @ 8 ohms with 1Khz input for 112 watts and 26 volts per channel @ 4 ohms with 1Khz input for 169 watts via discrete, TO3, metal cased outputs. (2x 2SC1116 & 2x 2SA747)
 AC Idle current at .55A, & floor noise L=<0.3mvAC & R=<0.2mvAC.

   _____________________________

   
   
One of the 'Big Boys' Stereo Receivers from Kenwood! This is from massive 'G' series. Beautiful 'Charcoal' anodized, aluminum face with gorgeous, BLUE backlit analog, slide rule tuning dial and analog VU meters.
This unit has a very high 'KPD-Factor' as well as 'MPD' and 'LPD' factors as well. Features gorgeous, BLUE / AQUA back-lit slide rule analog tuning scale with matching VU meters as well. VERY elegant and IMPRESSIVE unit when lit in a darkened room. This unit was marketed under two model numbers. The Kenwood 'KR-Nine G' and the 'KR-9000G'
(likely one for North America and the other for the rest of the planet).
All original milled, aluminum Kenwood knobs intact. Original, REAL walnut wood veneer case in spectacular condition with only VERY minor wear. No breaks or repairs to the wooden cooling louvers. Entire unit is a thing of beauty.
Features are:
   
  
 - Weighted flywheel analog AM/FM slide-rule tuning with lighted dial pointer
   - Separate Bass, Mid & Treble EQ with super quality de-tented controls
- Super quality, De-tented Volume control
- Tone Defeat selector for 'purest' signal path if desired
- Triple Pair Speaker Selector; A, B, or C or A+B or A+ C or Off speaker selector (two pair at a time)
- Built-in 'Pre-Out / Power-Input' loop

 - Built-in Subsonic Filter to eliminate excess rumble from sources such as turntables
- Hi filter for reducing tape hiss / electronic hiss & noise and record static
   - Loudness to accentuate bass response at lower volumes

   - Dual Analog VU meters for Power Output w/ dual range selector
   - Dual Analog VU meters for tuning and signal strength
   - Stereo / Mono selector (for entire pre-amp section, not just FM tuner)
   - FM Muting to eliminate 'hiss' between stations.
- Rear mounted FM 'De-Emphasis' selector for either 50
μsec or 75μsec
   - Stereo indicators
 - Aux inputs (may also be used for Video / CD / DVD /DAT / VCR / MP3 / iPod® / iPhone® / iTouch® / iGadget / MP3 / XM® / SIRUS®  etc.)
   - Dual tape monitors with bi-directional dubbing
 (Tape Monitors can be used with Video / CD / DVD / VCR / DAT / MP3 / iPod® / iPhone® / iTouch® / iGadget / MP3 / XM® / SIRUS® CDR (CD recorders as well as for inserting signal processors, such as EQ's, Reverbs, Spatial Enhancers / Dynamic Processors, Noise Reduction units, Special Effects units, Time Delays, etc)
   - Dual Phono / Turntable inputs w/ built-in Phone Pre-Amp
- Built-In AM 'Stick' Antenna
- 1/4" front mounted, Microphone input jack w/ 'Mixing' pot to inject your voice or other instrument signal into current program (BE CAREFUL WITH YOUR SPEAKERS DOING THIS!!!)
- 400Hz 'Record Calibration' tone generator built-in

   - Dual 1/4" Stereo Headphone Jacks
 - Built-in Dolby NR / FM decoder and it works well (brightens highs even on non-Dolby FM broadcasts)
- 120 Minute 'Sleep Timer' (we ship these receivers with the function 'disconnected' to eliminate future issues)
 - TripleAC convenience outlets; 2 'Switched' and 1 'Un-Switched for a total rated capacity of 400 watts

  
 - True "WORLD AC POWER" 50 / 60 cycles and 110V, 120V, 220V & 240V AC current


  Original Specs:
  
  POWER / PRE AMP SPECIFICATIONS:
Power output: 110wpc @ 4 Ohms
80wpc @ 8 Ohms
280 watts 'dynamic power' @ 4 Ohms

THD;
0.03% @ full rated power & 8 Ohms
0.01% @ 1/2 power

  IHF IMD; 0.03% @ full rated power & 8 Ohms
  Freq Response of power amp section;
  5-100,000kHz
  IHF IMD;
0.03% @ full rated power & 8 Ohms
0.01% @ 1/2 power

  Potential power bandwidth power amp section;   5-100,000kHz
   Damping factor; 40 @ 8Ω / 1kHz
   Signal / Noise;  115dB !!! @ AUX / Tape 'shorted'
   Input Sensitivity AUX / Tape; 120mV @ 50
   Bass Control;  ±12dB @ 50hz
   Mid Control;  ±12dB @ 800hz
   Treble Control;  ±12dB @ 15khz
   Low Filter; -15dB @ 18Hz
   High Filter; -6dB @ 10kHz
   Loudness Control; +10dB @ 100Hz (-30dB VOL)
   Output levels / impedanceTape RCA 150mV / 100 Ohms
DIN 30mV / 80kOhms
Pre-Out 10V? / 1k

 
  TUNER SPECS FOR FM;
Tuning Range;
88-108MHz
  Freq Response; 30-15kHz
  S/N @ 65dBf; >80db Mono or 74dB Stereo
  Capture Ratio @ 65dBf; 1.0 dB
  THD Mono @ 1kHz; 0.1%
  THD Stereo @ 1kHz; 0.15%
  FM Alternate Channel Selectivity; 75 dB
   Spurious Noise Ratio; 85 dB
   IF Rejection; 75 dB
  AM Suppression; 65 dB
  Stereo Separation; 45 dB @ 1k & 35dB @ 50-15kHz
 Subcarrier Product Suppression; 46 dB

   TUNER SPECS FOR AM;
Tuning Range; AM Band 540 kHz-1600 kHz
S/N; 
>50db
  Useable Sensitivity (IHF Bar Antenna); 20μV
  Selectivity; 30dB @ 1kHz
  IF rejection; 55dB @ 1kHz
  THD; 0.5% @ 80dB / m
 
  PHONO SECTION SPECS;
  Freq Response;
30Hz-20kHz w/ RIAA deviation; ±0.3dB
  S/N; >80dB, IHF-A curve
   Input Sensitivity; 2.5mV @ 50kΩ
  Overload limit;
230mV @ 1k w/ 0.03% THD
 
Again, we have completely gone thru this unit and it's 'Ready To Go'! 
This is a HUGE 'Military' / Euro / Asian market 'Monster' receiver from 1978! The unit looks fabulous, works and sounds great! Includes a copy of the service manual. Receiver measures 24.5" wide x 18.25" deep x 8.5" high and weighs 44 lbs unpacked. Includes our standard 90 day limited warranty.
KENWOOD KR-9000G STEREO RECEIVER
   Cond. 8.5+++

   
$899. (C)
M.R.

 

 





        NEW ADDITION 1
0/12/11
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CheckMarkSmall_web.jpg (792 bytes)  warranty
VINTAGE STEREO RECEIVER
YAMAHA
      CR-820
cr820
STEREO RECEIVER 
#...6787  
 circa 1977-'79
   MIJ!

   for sale
   We have completely gone through this unit cleaning everything including all switches, controls and contacts. We also aligned the tuner front-end for optimum performance as older tuner components have drifted over the years. Output transistor bias adjusted to correct 08.0mv. Re-tensioned internal fuse holder clips. Re-tensioned tuner string to relieve flywheel binding and re-centered pointer to correct dial position. VERY GOOD TUNER! Generally AM reception in a stereo receiver is treated as an 'after thought', but the AM reception on this one is WAY above average. VERY GOOD TUNER! FM reception as well great and IMPECCABLY CLEAN!!! We replaced ALL meter lamps and the dial pointer lamps with new units for trouble-free service. All inputs tested and both sides produce clean and even sine waves into 'brick-wall' 8 & 4 ohm loads! No power supply hum of any kind. It's dead silent! All functions test fine. Following restoration procedures, the unit was ran continuously at medium volume, as all our amplifier / receivers are, into a load with "Loudness" on and both Tone Controls at 10 for 48 hours. You will not be disappointed. Total restoration time investment ~14 hours.
   
   
On our test bench, the internal amplifiers of this receiver #...6787 produced 22.5 volts per channel @ 8 ohms with 1Khz input for 63 watts and 17.8 volts per channel @ 4 ohms with 1Khz input for 79 watts via discrete, TO3, metal cased outputs.
 
AC Idle current at .25A, DC output <17ma either channel
. Floor noise at 00.3mVAC either channel.
   ____________________________
   
   One of the classics from Yamaha! This is from one of the most sought after Yamaha receivers. Beautiful brushed solid aluminum front panel with analog, slide rule tuning dial. All original aluminum Yamaha knobs intact and in near new condition. Features are:
   
  
 - Weighted flywheel analog AM/FM slide-rule tuning with lighted dial pointer
   - Separate Bass, Presence (mid) & Treble EQ with super quality de-tented controls
 - Built-in Subsonic Filter to eliminate excess rumble from sources such as turntables
- Hi filter for reducing tape hiss / electronic hiss & noise and record static
   - Features Yamaha's own "Variable Loudness Contour" control utilizing high quality de-tented potentiometer 
   - Instant -20db audio level muting
   - Analog VU meters for tuning and signal strength
   - Stereo / Mono selector (for entire pre-amp section, not just FM tuner)
   - FM Muting
   - LED AFC Station lock & Stereo indicators
   - Speaker selector for A - B, A+B, or Off
 - Aux inputs (may also be used for Video / CD / DVD /DAT / VCR / MP3 / iPod® / iPhone® / iTouch® / iGadget / MP3 / XM® / SIRUS®  etc.)
   - Dual tape monitors with bi-directional dubbing
 (Tape Monitors can be used with Video / CD / DVD / VCR / DAT / MP3 / iPod® / iPhone® / iTouch® / iGadget / MP3 / XM® / SIRUS® CDR (CD recorders as well as for inserting signal processors, such as EQ's, Reverbs, Spatial Enhancers / Dynamic Processors, Noise Reduction units, Special Effects units, Time Delays, etc)
   - Phono / Turntable input w/ built-in Phone Pre-Amp
   - Dual 1/4" Stereo Headphone Jacks

  
  Original Specs:
   The Yamaha CR-800 has a continuous power output of 50 watts per channel min. @ 8 ohms from 20 hertz to 20,000 hertz with no more than 0.05% THD (measured utilizing AUX input)
  
  POWER / PRE AMP SPECIFICATIONS:
  THD; 0.05% @ full rated power
  IHF IMD; 0.05% @ full rated power
  Freq Response of power amp section;
  @ full rated power 20-20kHz
  IHF IMD;
0.05% @ 1 watt / 20-20kHz
 
  Potential power bandwidth power amp section; 10-50,000Hz
   Damping factor; 40 @ 8Ω / 1kHz
   Signal / Noise;  >97dB @ AUX / Tape
   Input Sensitivity AUX / Tape; 120mV @ 45kΩ
   Bass Control;  ±13dB @ 50hz
   Presence Control;  ±13dB @ 3khz
   Treble Control;  ±6dB @ 20khz
   Low Filter; 25Hz @ 12dB / Oct
   High Filter; 10kHz @ 12dB / Oct
   Loudness Control; Variable
 
  TUNER SPECS FOR FM;
Tuning Range;
88-108MHz
  Freq Response; 30-15kHz
  S/N @ 65dBf; > 77db Mono or 73dB Stereo
  Capture Ratio @ 65dBf; 1.0 dB
  THD Mono @ 1kHz; 0.1%
  THD Stereo @ 1kHz; 0.15%
  FM Alternate Channel Selectivity; 75dB
   Spurious Noise Ratio; 100dB
   IF Rejection; 90dB
  AM Suppression; 65 dB

  Useable Mono Sensitivity (IHF); 3.2 μV / 15.3 dBf
  Useable Stereo Sensitivity (IHF); 40 μV / 37.3 dBf
Muting Threshold; 5μV / 19.2 dBf
  Stereo Separation @ 1Hz; 40dB

   TUNER SPECS FOR AM;
   Tuning Range;
525-1605kHz
   S/N @ 80dB / m; >50db
  Useable Sensitivity (IHF Bar Antenna); 49dB / m
  Selectivity; 30dB @ 1kHz
  IF rejection; 55dB @ 1kHz
  THD; 0.4% @ 80dB / m
 
  PHONO SECTION SPECS;
  Freq Response;
RIAA deviation; ±0.5dB
  S/N; >92dB!!!, IHF-A
   Input Sensitivity; 2mV @ 50kΩ
  Overload limit;
120mV @ 1k
 
Again, we have completely gone thru this unit and it's 'Ready To Go'! Huge, vertical finned heat sinks for great cooling efficiency of outputs. Great sounding 'Phono' section (check the corresponding S/N ration above). Also, check the S/N ratio of the FM tuner in 'Stereo'! The brushed Aluminum face and knobs are in great condition. The vinyl wrap, wood grain case is also in great condition. The unit looks fabulous, works and sounds great! Includes a copy of the owners / users manual. Receiver measures 20" wide x 15.5" deep x 6.5" high and weighs 29 lbs unpacked. Includes our standard 90 day limited warranty.
   YAMAHA CR-820 STEREO RECEIVER
   Cond. 8.5+++

   
$549.
SOLD 1/20/12 D.W.A.

 



 

 

  



    

        NEW LISTING 8/5/11
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VINTAGE STEREO RECEIVER 
SANSUI
7070
STEREO RECEIVER
#...2807
CIRCA 1977-79

"WORLD AC POWER" ™

MIJ

SOLD 10/24/11

 We have completely gone through this unit cleaning everything including all switches (actually accessed and fully flooded), controls and contacts for quiet, positive operation.  We also aligned the tuner front-end for optimum AM & FM performance as older internal tuner components have always drifted on vintage gear over the years. All dial, all meter (including the very difficult to replace power meter lamps), most function indicator and stereo indicator lamps replaced with new units for years of trouble-free service. Also we 'painstakingly' replaced the 'dial pointer' lamp. We also cleaned and re-tensioned the dial string. An entire replacement top bonnet (case) was also sourced to improve the cosmetics. All inputs tested, including both phonos, and both amplifiers produces clean and even sine waves into static 8 & 4 ohm loads! No power supply hum of any kind. It's dead silent! All functions test fine. The Walnut wood grain, vinyl wrapped in good condition with minor wear. Following restoration procedures, the unit was operated continuously at medium volume, as all our amplifier / receivers are, into a load with ""Loudness"" on and both Tone Controls at 10 for 72 hours.
 
 
On our test bench, this particular Sansui 7070, #...2807, amplifiers each produced 25 volts  per channel for 78 watts per channel @ 8 Ω via discrete output & 19 volts per channel for 90 watts per channel @ 4 Ω via discrete, Metal cased, TO-3 outputs (Sanken 2x  25A746 & 2x  25C 1115).
(AC draw at idle 0.33A tested,
Floor noise measured at 00.08 mvAC and DC measured at < -9mv each side)
 
___________________________ 

 
 Here's the first Sansui 7070 we've had in a just over 3 years! These are known for great tuners, and amp's that you can "darn near weld with". Very warm sounding with lots of punch and headroom. Very "Musical" sounding  with real output transistors and huge power supplies. 
 Features include:

 
-Weighted flywheel analog tuning
- Huge internal Power Supply
- Real Metal Cased output transistors for lot's of punch and tone!!!!
 - A, B, A+B & Off speaker selector
 - Gorgeous "Aqua" back-lit slide rule face and tuning meters (amber back-lit power meters)
 - Analog Tuning and signal strength VU meters
 - Dual Analog Power VU meters
 - Separate Bass, Midrange and Treble controls utilizing high quality de-tented pots
- "Loudness" function to boost Bass and Treble in relationship to Mid frequencies at lower volume levels for a much fuller sound.
 - FM Muting Selector
- Stereo / Mono selector for all inputs
- MPX filter for reducing the 19kHz pilot tone in FM
 - Hi filter for reducing tape hiss / electronic hiss & noise and record static
 - Built-in Subsonic Filter to eliminate excess rumble from sources such as turntables
 - -20dB Audio Muting
 - Dual phono / turntable inputs
with Built-In Phono Pre-Amp
  - Dual tape monitors with Tape monitor 'B' also featuring a DIN input as well as the standard RCA I/O's
 (Tape Monitors can be used with Tape / Video / CD / DVD / VCR / DAT / MP3 / iPod® / iPhone® / iTouch® / iGadget / MP3 / XM® / SIRUS® CDR (CD recorders as well as for inserting signal processors, such as EQ's, Reverbs, Spatial Enhancers / Dynamic Processors, Noise Reduction units, Special Effects units, Time Delays, etc)


 - Aux input
(may also be used for Video / CD / DVD /DAT / VCR / MP3 / iPod® / iPhone® / iTouch® / iGadget / MP3 / XM® / SIRUS®  etc.)

 - Dolby Loop can be used as an additional input or as a signal processor loop for EQ, Dynamic Range Expanders, Reverbs, Delays, DBX units, etc.
 - 1/4", stereo headphone jack
 - Bi-directional tape dubbing
 - Microphone input with Level Control (turns the unit into the ultimate Karaoke Machine (be very careful with your speakers when inserting a mic into a stereo receiver)
- External AC main line protection fuse
 - 2x AC convenience outlets 1 switched and 1 un-switched with a total output capacity of 250 watts
 - True
"WORLD AC POWER" as it will work on both 50 or 60 Hz AC and voltages from 110-240 volts AC
 
 This unit is great looking and fabulous sounding! Again, we have completely gone through it cleaning all switches, contacts, pots and controls. Face plate, window and knobs are in great cosmetic condition. The Walnut grain, vinyl wrap case shows well with minor normal scuffs. Looks VERY impressive and sounds great! This thing is incredible when lit up at night or in a dark room!! Measures 19.75" wide x 7" tall x 15.5" deep and weighs 37 lbs unpacked. Includes our standard 90 day limited warranty.
 SANSUI 7070DB STEREO RECEIVER
 Cond. 8.5

SOLD 10/24/11

 

 


Pioneer_SX-636_Stereo_Receiver_web.JPG (71951 bytes)      Pioneer_SX-636_Stereo_Receiver_collage.JPG (386902 bytes)

NEW ADDITION 10/12/11
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CheckMarkSmall_web.jpg (792 bytes)  warranty
VINTAGE STEREO RECEIVER 
PIONEER
 SX-636

STEREO RECEIVER
#...689S
 Circa 1974-76
MIJ

SOLD 11/7/11

 Receiver has had complete service including all switches, contacts, and controls cleaned for static free performance, complete cleaning inside and out. We replaced the entire face as the original had a cracked dial glass. Replacement is perfect and beautiful. Any bent control shafts straightened. All dial, meter, 'Function' and 'Stereo' indicator lamps replaced (13 in all). Tuner string tension checked as well as pointer position. Output transistors were removed and heat sink compound replaced with fresh. Output DC offset / Bias adjusted to correct 20mV. All 5 internal fuses checked for correct value. Speaker protection fuses replaced with fresh units (originals appeared fine though). We also aligned the tuner front-end for optimum performance as older tuner components have drifted over the years. VERY GOOD TUNER! AM  reception above average, FM reception incredible and IMPECCABLY CLEAN!!! All inputs tested and both side produces clean and even sine waves into static 8 & 4 ohm loads! No power supply hum of any kind. It's dead silent! All functions test fine. Following restoration procedures, the unit was ran continuously at medium volume, as all our amplifier / receivers are, into a load with "Loudness" on and both Tone Controls at 10 for 48 hours. All functions test perfectly. Wood grained vinyl case also in great shape. Entire restoration ~9.5 hours.
 
 
The Pioneer SX-636 was originally rated for 25 watts, but both internal power amplifiers of this receiver #...689S, produced 16.5 volts at 8 ohms per channel for 32 watts / channel and 12.5 volts at 4 ohms per channel for 39 watts / channel via discrete, metal cased, Toshiba, TO-3  output devices at 1khz (2x 2SD371 & 2x 2SB531)
 
 AC Idle current at .25A, &
floor noise L=<00.3mvAC & R=<00.3mvAC (restoration improved floor noise from 2.7 to 00.3, an improvement of ~900%!)

DC output <10mV either channel.

 ____________________________
 
 Great looking "Blue Face" Pioneer receiver! Beautiful when lit up at night or in a dark room. Classic Silver and Wood look design. Brushed face with milled Aluminum knobs.
Features include:

 
 
- Weighted flywheel analog tuning
 - A & B speaker selector
 - Separate bass and treble utilizing high-quality, de-tented ALPS pots
 - Stereo / Mono selector for entire pre amp section, not just the FM tuner
 - Hi filters for attenuating the 19kHz "pilot tone" in FM broadcast

   - Loudness to accentuate bass response at lower volumes

 - FM muting to reduce 'hiss' between stations
  - "blue-green" back-lit analog tuning and signal strength VU meters

 - Aux inputs (may also be used for Video / CD / DVD /DAT / VCR / MP3 / iPod® / iPhone® / iTouch® / iGadget / MP3 / XM® / SIRUS®  etc.)
   - Dual tape monitors with dubbing (Tape-2 featuring both RCA and DIN I/O's)
 (Tape Monitors can be used with Video / CD / DVD / VCR / DAT / MP3 / iPod® / iPhone® / iTouch® / iGadget / MP3 / XM® / SIRUS® CDR (CD recorders as well as for inserting signal processors, such as EQ's, Reverbs, Spatial Enhancers / Dynamic Processors, Noise Reduction units, Special Effects units, Time Delays, etc)
   - Phono / Turntable / 'Mic' inputs w/ built-in Phone Pre-Amp

 - FM de-emphasis selector for either 25 or 75 µSec
 - built-in ferrite loop AM antenna, 
- External 'Speaker / Output' protection fuses
 - Dual AC outlets (1 switched / 1 un-switched) with a total capacity of 420 watts.
 
 
 Again, we have completely gone through this unit as stated previously. All functions test fine. Built using super quality "ALPS" pots. Looks fabulous (especially in a darkened room) and sounds great! Very 'Musical' sounding. Plenty of 'REAL' power for most speakers up to 'medium-large'. Very clean throughout! Face, knobs and case all in EXCELLENT condition. Includes a copy of the Owners / Users manual, Service Manual and Brochure. Measures 19.5" wide x 16" deep x 5.75" tall and weighs 30 lbs unpacked. Comes with our standard 90 day limited warranty.
 PIONEER SX-636 STEREO RECEIVER
 Cond. 8.5+++

SOLD 11/7/11


 


NEW ADDITION 10/12/11
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CheckMarkSmall_web.jpg (792 bytes)  warranty
VINTAGE STEREO RECEIVER
MARANTZ

MODEL 2220B

STEREO RECEIVER
#...0883
Circa 1974-77

(actual internally dated 1976)

Classic 'Blue Face'

MIJ
SOLD 10/27/11

We have completely gone through this thoroughly cleaning inside and out including all contacts, switches, controls and I/O jacks. All internal fuses checked for correct values. All indicator lamps checked and all 8 dial & meter lamps were replaced, as well as the lamps in the 'dial pointer' with new bulbs, for trouble-free service. We also aligned the VERY sophisticated tuner for optimum performance on both AM and FM. Dial pointer track was cleaned of old lube and re-lubed w/ silicone grease. We also replaced a missing 'Speaker B' output clip with original and re-tensioned the rest of the speaker clips. All functions tested for perfect operation. Power supply adjusted to correct 35VDC +/- 0.02V. All inputs tested and both sides produce clean and even sine waves! Tone controls are super quality, Alps brand, "full-size", de-tented potentiometers. Following restoration procedures, the unit was ran continuously at medium volume, as all our amplifier / receivers are, into a load with "Loudness" on and both Tone Controls at 10 for 72 hours. All functions test perfectly. 
Total restoration time investment ~8 hours.
 

On our test bench, this unit of this receiver #...0883,  amplifiers produced 15.5 volts @ 8 Ω per channel for 30 watts / channel and 12 volts @ 4 Ω per channel for 36 SOLID watts / channel via discrete, TO-3 style, Original Marantz metal cased output devices at 1khz. (2x D168 & 2x A627)
AC current at idle measured at 0.2A.
DC output <12mV either channel.


Classic 'Blue Face' Marantz, 2220B stereo receiver. Elegant looking Face is milled from a solid plank of Aluminum with matching milled aluminum controls. This unit looks fabulous.
 Features include:

 

- Marantz exclusive "Gyro-Touch" weighted flywheel analog 'Slide Rule' tuning w/ ''PLL' (Phase Locked Loop) circuitry
 
- A-B, A+B or Off speaker selector
 
- Separate Bass, Mid and Treble utilizing high quality 'Alps' brand pots
- Built-in Hi filter for reducing 19kHz pilot tone and 38kHz Harmonic in FM broadcasts & Tape hiss.
 
- FM muting, separate from FM stereo selector
- Stereo / Mono mode selector for Pre-Amp section or FM tuner (depending on function selected)
- "Loudness" function to boost Bass and Treble in relationship to Mid frequencies at lower volume levels for a much fuller sound
- Phono / turntable  input
- Aux inputs (may also be used for Video / CD / DVD /DAT / VCR / MP3 / iPod® / iPhone® / iTouch® / iGadget / MP3 / XM® / SIRUS®  etc.)
 - Real 'Tape Monitor Loop' and second 'Tape Input / Output'
 (Tape Monitors can be used with Video / CD / DVD / VCR / DAT / MP3 / iPod® / iPhone® / iTouch® / iGadget / MP3 / XM® / SIRUS® CDR (CD recorders as well as for inserting signal processors, such as EQ's, Reverbs, Spatial Enhancers / Dynamic Processors, Noise Reduction units, Special Effects units, Time Delays, etc)

- Analog VU 'Tuning' meter
- 'Dolby FM / 25
μsec' selector
- Built-In AM 'Stick' antenna
- 'Quadradial' RCA tuner output for scope

   - 1/4" Stereo Headphone Jack
- Externally located protection line fuse

- Dual AC convenience outlets on rear panel with 1 switched and 1 un-switched for a total capacity of 260 watts of accessories

 

Original Specs:
  "The Marantz 2220B has a continuous power output of 20 watts per channel min. @ 8 or 4 ohms from 20 hertz to 20,000 hertz with no more than 0.5% THD (measured utilizing AUX input)"
 
POWER / PRE AMP SPECIFICATIONS:

THD:
0.5% @ 8Ω @ full rated power
Freq Response of power amp section;
@ full rated power 20-20kHz
Dynamic Range; 96dB
Power Bandwidth; 10Hz-50,000Hz
 IMD utilizing AUX;
0.9% @
Damping factor:
>20 @ 8Ω full bandwidth
Channel Separation:
>30dB @ 8Ω full bandwidth

TUNER SPECS FOR FM:
Freq Response:
50-15kHz
Useable Mono RF Sensitivity:
2.5 μV
Capture Ratio:
3.0dB
Signal for 50dB quieting, Stereo: 50.0μV
THD w/ 100% modulation @ 400Hz, Mono: 
0.3%
Stereo Sub-Carrier Rejection: 
68dB
Stereo Separation @ 1kHz: 
40dB

PHONO SECTION SPECS:

Input Sensitivity:
1.8 mV @ 47
 
Again, as stated before, we have completely gone through this unit cleaning and testing all. Brushed aluminum face and all original, milled knobs in fabulous shape. After restoration, receiver looks, performs and sounds great! This is a VERY 'Musical' sounding tuner/pre/power-amp. Very 'full, warm and phat'. Great 'low-end' depth at any volume. Tone controls have a lot of influence. Tuner section is magical to listen to. Overall a pleasing unit to listen to in all aspects. Measures 17.25" wide x 14" deep x 5.5" high and weighs 26 lbs unpacked. Includes our standard 90 day limited warranty!
MARANTZ 2220B STEREO RECEIVER
 Cond. 8.5+++

SOLD 10/27/11


  

 

What is a 'Receiver' and how is it different than a 'Tuner' or an 'Amp'?
The term 'Receiver' refers to a combined unit consisting of at least 3 aspects incorporated into one. The 3 basic units are the AM/FM 'Tuner' or radio, a 'Pre-Amplifier' / 'Control-Amp' and a 'Power-Amplifier' all combined in one 'box'. Originally the general consensus was that 'receivers' did not perform as well as 'separates' and were sonically inferior. While this may have been the case early on, as in the late 1950's to early '60's, technology improved quickly and by the mid-late 60's the arguments for separates over receivers for most 'mid-level' consumer Hi-Fi applications were generally without merit. For 95% of home-audio listeners, a receiver will be more than ample.

 


 

 


Click here for our Restoration Procedures



 

NEWEST ADDITIONS OR COMING SOON:
 
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-
SOLD ITEMS BELOW

CLICK HERE TO SEE OUR ARCHIVE OF
 SOLD RECEIVERS.
 

WE WILL LIKELY GET MORE OF THEM AGAIN!!!





NEW LISTING 8/5/11
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CheckMarkSmall_web.jpg (792 bytes) warranty
VINTAGE STEREO RECEIVER
KENWOOD
KR-4070
AM/FM STEREO RECEIVER
#...6647
 Circa '77-'81

SOLD 9/1/11

 
Receiver has had complete service including all switches, contacts, and controls cleaned for static free performance, complete cleaning inside and out. All dial lights and meter lamps replaced. Output bias set correctly to 15 ± .1 mVDC. Probably the most important and first things that must be done on this model, as well as a few others that utilize this type of part, is that the power switch must be 'inverted' to 'fresh contacts' to prevent 'arcing'. That aspect should be good for another 20-30 years now. We also aligned the tuner front-end for optimum AM & FM performance as older internal tuner components have always drifted on vintage gear over the years. VERY GOOD TUNER! Generally AM reception in a stereo receiver is treated as an 'after thought', but the AM reception on this one is WAY above average. Pulls in stations like an old 'Tube' radio! FM reception also incredible and IMPECCABLY CLEAN!!!
All inputs and functions tested and both side produces clean and even sine waves into static 8 & 4 ohm loads! No power supply hum of any kind. It's dead silent! Following restoration procedures, the unit was ran continuously at medium volume, as all our amplifier / receivers are, into a load with "Loudness" on and both Tone Controls at 10 for 48 hours. Unit looks and sounds great.

 
 
On our test bench, this unit's amplifiers produced a strong 22 volts per channel for 60 watts per channel @ 8 Ω and 19 volts @ 4 Ω for 90 watts per channel via discrete output devices.
(AC draw at idle 0.3A tested)

 
____________________________
 

 Fabulous condition, late 70's silver face receiver from Kenwood. Great performance for a 'mid-sized' 2-Channel audio system. Nice looking classic brushed aluminum face. 
 Features include:
 
 
- Weighted flywheel analog slide rule tuning
 - A, B, A&B speaker selector
 - Separate Bass and Treble controls utilizing high quality de-tented pots
- "Loudness" function to boost Bass and Treble in relationship to Mid frequencies at lower volume levels for a much fuller sound.
 - FM muting
 - FM Stereo Mono / Stereo Mode selector
 - Dual Analog back lit VU meters for tuning and signal strength
 - Phono / Turntable input
with Built-In Phono Pre-Amp
  - 'True' Tape Monitor with a DIN input as well as the standard RCA I/O's
 (Tape Monitors can be used with Tape / Video / CD / DVD / VCR / DAT / MP3 / iPod® / iPhone® / iTouch® / iGadget / MP3 / XM® / SIRUS® CDR (CD recorders as well as for inserting signal processors, such as EQ's, Reverbs, Spatial Enhancers / Dynamic Processors, Noise Reduction units, Special Effects units, Time Delays, etc)


 - Aux input
(may also be used for Video / CD / DVD /DAT / VCR / MP3 / iPod® / iPhone® / iTouch® / iGadget / MP3 / XM® / SIRUS®  etc.)


 - Built-in AM ferrite antenna
 - 2 convenience AC outlets with 1 being switched

 
  Again, unit looks near new and sounds great. Face and all original knobs intact and look great! 'Ready to Rock'! Measures 18.5" wide x 14" deep x 6" tall and weighs 20 lbs unpacked. Comes with our standard 90 day limited warranty.
 KENWOOD
 KR-4070
 Cond. 8.5+++

SOLD 9/1/11


 
    

         

           NEW ADDITION 12/14/10
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 CheckMarkSmall_web.jpg (792 bytes) warranty
VINTAGE AM/FM STEREO RECEIVER
SANSUI 5050
STEREO RECEIVER
#...5051  
circa 1977-79
MIJ

SOLD 2/7/11

 We have completely gone through this unit cleaning everything including all switches, controls and contacts for quiet, positive operation.  We also aligned the tuner front-end for optimum AM & FM performance as older internal tuner components have always drifted on vintage gear over the years. Tuner circuit board trace fractures addressed. Noisy 'Differential pair' in left channel addressed. Output solder jacks re-flowed. All dial, meter, function indicator and stereo indicator lamps replaced with new units for  trouble-free service. All inputs tested, including phono. Both amplifiers produce clean and even sine waves into static 8 & 4 ohm loads! No power supply hum of any kind. It's dead silent! The Walnut wood grain, vinyl wrapped cabinet has numerous, battle scars, but is structurally fine. Following restoration procedures, the unit was operated continuously at medium volume, as all our amplifier / receivers are, into a load with ""Loudness"" on and both Tone Controls at 10 for 72 hours.
 
 
On our test bench, both amplifiers each produced peak power of 18.25volts per channel for a VERY STRONG AND PUNCHY sounding 41 watts per channel at 8 ohms & 15.3 volts per channel for 58 watts per channel at 4 ohms via discrete, TO-3 metal cased outputs. (4x  2SC445)
AC Idle current at .5A, DC output <18ma either channel, floor noise <2mvAC.

 ____________________________
 
 This is only the second Sansui 5050 we have had in 13 years. These are known for great tuners, and  very warm sounding amps, with lots of punch and headroom. Very "Musical" sounding  with real output transistors and well designed power supplies. 
 Features include:

 
-Weighted flywheel analog tuning
- Large internal Power Supply
- Real Metal Cased output transistors for lot's of punch and tone!!!!
 - A, B, A+B & Off speaker selector
 - Gorgeous "Aqua" back-lit slide rule face and tuning meters
 - Analog Tuning and signal strength VU meters
 - Separate Bass, Midrange and Treble controls utilizing high quality de-tented pots
- "Loudness" function to boost Bass and Treble in relationship to Mid frequencies at lower volume levels for a much fuller sound.
 - FM Muting Selector
- Stereo / Mono selector for all inputs
 - Hi filter for reducing tape hiss / electronic hiss & noise and record static
 - Phono / turntable input
 - Tape monitor (Tape Monitors can be used with Video / CD / DVD / VCR / DAT / iPod / iPhone / iTouch / iGadget / MP3 / XM® / SIRUS® etc.) Tape has both RCA & DIN jacks
  - AUX Input (may also be used for Video / CD / DVD / VCR / DAT / iPod® / iPhone® / iTouch® / iGadget / MP3 / XM® / SIRUS® etc.)
 - Dolby Loop for utilizing external Dolby FM decoding adaptor on FM (no longer utilized for modern FM transmissions)
 - 1/4", stereo headphone jack
 - Microphone input with Level Control (turns the unit into the ultimate Karaoke Machine (be very careful with your speakers when inserting a mic into a stereo receiver)
 - 2x AC convenience outlets 1 switched and 1 un-switched with a total output capacity of 250 watts

 
SPECS:


 POWER / PRE AMP SPECIFICATIONS:
 THD;
0.5% @ 1k / full rated power
 Freq Response of power amp section;
 @ full rated power 20-20kHz

 Music Power rating;
30wpc @ 8Ω

 TUNER SPECS FOR FM;
 Freq Response;
30-15kHz
 Capture Ratio; 2.2dB

 S/N ; 
> 65db Mono / > 60db Stereo
  Useable Mono Sensitivity (IHF) ;
2.0 μV / 11.2 dBf
  Mono Signal Strength for 50dB quieting (IHF) ;
3.5 μV / 16.0 dBf
Stereo Signal Strength for 50dB quieting (IHF);
38 dBf
 THD Mono @ 1kHz;
0.4%
 THD Stereo @ 1kHz; 
0.5%
 FM Alternate Channel Selectivity;
60dB

 PHONO SECTION SPECS;
 Freq Response;
20-20kHz
 S/N;
>70 dB, A-weighted
  Input Sensitivity;
2.5 mV @ 47
 Overload limit;
160mV


Again, we have completely gone through it cleaning all switches, contacts, pots and controls. While the vinyl finish to the case had numerous scuffs, scrapes and dings, the face plate, window and knobs are in good cosmetic condition with normal wear to the dial bezel edge 'silver'. Works and sounds great! This thing is incredible when lit up at night or in a dark room!! Measures 18.25" wide x 6.5" tall x 13" deep and weighs 24 lbs unpacked. Includes our standard 90 day limited warranty.
 SANSUI 5050
 Cond. 8

SOLD 2/7/11


 

 





NEW ADDITION 2/4/11
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VINTAGE STEREO RECEIVER
SONY
        STR-V5
STRV5  
STEREO RECEIVER
#...0259
CIRCA 1978
 MIJ

SOLD 2/15/11

We have completely gone through this cleaning inside and out including all contacts, switches and controls. AM & FM tuner re-aligned and front-end adjusted for optimum performance. All dial & meter lamps replaced with new bulbs (we even surgically removed the original 'Blue' gels and installed them on the new lamps). This unit has been upgraded to rubber sheets to transfer heat to heat sinks as opposed to compound, on all output transistors. Cleaned tuning capacitor for clarity. All inputs tested and both side produces clean and even sine waves into static 8 & 4 ohm loads! No power supply hum of any kind. It's dead silent! All functions test fine. Following restoration procedures, the unit was ran continuously at medium volume, as all our amplifier / receivers are, into a load with "Loudness" on and both Tone Controls at 10 for 48 hours.
 

  
On our test bench, the internal amplifiers of this particular unit  #...2371, produced a strong 30.5 volts per channel @ 8 ohms for 116 watts per channel, and 26 volts per channel @ 4 ohms for 169 watts per channel via discrete, outputs with 1 kHz input. (4x B700 & 4X D736)
(DC output: L channel = 6.5mv & R channel = ~-5 mv. AC draw at idle 0.65A tested)

 ____________________________

 

Massive looking Silver-face Sony STR-V5 Stereo Receiver. Only the second one of these "Big" STR-V5's we've had in over 13 years. We've had a few "4's" but only two "5's". Huge features include full length tinted and beveled glass dial window and giant sculpted knobs for tuning and volume. Internally this model is impressive as well. The Huge power transformer is completely shielded. The outputs are cooled by a very large heat sink with vertically oriented fins, as they should be. Tuning is handled by a '7-Gang' tuning capacitor. The tone controls are 'Very Musical' sounding and a pleasure to use. Looks, performs and sounds great!
 Features include:

 
 - Heavy, Weighted analog flywheel tuning with fully lit "Slide Rule" dial
- Separate Bass and Treble tone controls featuring high quality de-tented pots
 - A, B, & A+B and "Off" speaker set selector
 - Dual "True" tape monitors
 (Tape Monitors can be used with Video / CD / DVD / VCR / DAT / iPod / MP3 / XM / SIRUS CDR (CD recorders as well as for inserting signal processors, such as EQ's, Reverbs, Spatial Enhancers / Dynamic Processors, Noise Reduction units, Special Effects units, Time Delays, etc)
 - Bi-Directional Tape dubbing
- AUX Input (may also be used for Video
/ CD / DVD /DAT / VCR / MP3 / iPod® / iPhone® / iTouch® / iGadget / MP3 / XM® / SIRUS®  etc.)

- "Loudness" function to boost Bass and Treble in relationship to Mid frequencies at lower volume levels for a much fuller sound.
 - Phono / Turntable input
with Built-In Phono Pre-Amp
- Dolby FM de-emphasis

 
- Hi filter for reducing tape hiss / electronic hiss & noise and record static
 - Built-in "Low" / Subsonic Filter to eliminate excess rumble from sources such as turntables
 
- FM muting, separate from FM stereo selector
- Stereo / Mono mode selector for Pre-Amp section
- Dual Analog, VU Power Meters (right meter switchable between "Power" and tuner "Signal Strength" function)
- Analog, VU style, Tuning and Signal Strength meters (right meter switchable between "Power" and tuner "Signal Strength" function)
  - Built-In Ferrite "Stick" AM antenna on rear panel
  - Front mounted 1/4" stereo headphone jack
 - Dual AC outlets on rear panel (1 switched & 1 un-switched) with a total capacity of 400 watts.

SPECS:

POWER / PRE AMP SPECIFICATIONS:
Max rated Power: 2 x 130 watts @ 8 Ohms
Cont rated Power: 2x 85 watts @ 8 Ohms / 20-20kHz
 THD; 0.07% @ full rated power
  Potential Freq Response of Pre-amp section;
 measured @ 1w; 10-35,000Hz +0.2dB / -1.5dB  ±
  Potential Freq Response of power amp section;
   5-50KHz & @ 1w; +0dB / -3.0dB  ±
  IMD utilizing AUX;
  0.07% @ full rated power / 20-20kHz
  Damping factor; 40 @ 8Ω & full bandwidth
  Hum and Noise;  95dB on Phono & 100dB on AUX / Tape
  Input Sensitivity AUX / Tape; 150mV @ 47kΩ
  Tape 1/2 Output level, via RCA; 150mV
  Bass Control;  ±10dB @ 100hz
  Treble Control;  ±10dB @ 10khz
  Low Filter;  -3dB @ 50Hz @ 6dB Oct
  High Filter;  -3dB @ 9kHz @ 6dB Oct
  "Loudness" Contour;  +10dB @ 50hz, +3dB @ 10khz (w/ volume set at -30dB)

  TUNER SPECS FOR FM:
  Tuning Range;
88-108mHz
  Freq Response; 30-15kHz
  S/N @ 65dBf; > 63db Stereo
  S/N @ 65dBf; > 67db Mono
  Useable Mono Sensitivity; 15 dBf
  FM Alternate Channel Selectivity; 85dB @ 400 Hz
  Spurious Noise Ratio; 80dB
  THD 65dBf @ 1kHz, Mono;  0.08%
  THD 65dBf @ 1kHz, Stereo;  0.25%
 
  TUNER SPECS FOR AM:
  Tuning Range;
530-1600kHz
  Distortion: 0.5%
  S/N; > 50db
  Useable Sensitivity; 300μV / m with ferrite stick antenna or 15dB / m with external antenna
  Selectivity; 40dB
 
  PHONO SECTION SPECS:
  Freq Response;
20-20kHz

  THD; 0.03% @ 240 mV @ 1kHz
  Input Sensitivity; 2.5 mV @ 50kΩ

 
Again, as stated before, we have completely gone through this unit cleaning, refurbishing and testing all. Unit looks near NEW, performs and sounds impressive! Beautiful aluminum face and all original, milled knobs in fabulous shape. Wood grain, vinyl wrapped case in great shape as well. Measures 20.5" wide x 7.5" tall x 17" deep and weighs an impressive 47 lbs unpacked. Includes our standard 90 day limited warranty.
Sony STR-V5 STEREO RECEIVER
 Condition 8.5

SOLD 2/15/11


 

 

 



    

NEW ADDITION 2/4/11
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CheckMarkSmall_web.jpg (792 bytes) warranty
VINTAGE STEREO RECEIVER
KENWOOD
          KR-7600
KR7600
STEREO RECEIVER
W/ WOOD CASE
  Circa 1976-80
 M.I.J. 

SOLD 2/14/11

 
Receiver has had complete service including cleaning everything including all switches, controls and contacts including the famously, very difficult to access, KR-7600 phono and tape monitor selectors. While in that subassembly, we also took the opportunity to 'Re-Flow' the I/O jack solder joints to assure solid contact. We also aligned the tuner front-end for optimum AM & FM performance as older internal tuner components have always drifted on vintage gear over the years. VERY GOOD TUNER! Generally AM reception in a stereo receiver is treated as an 'after thought', but the AM reception on this one is WAY above average. Pulls in stations like an old 'Tube' radio! FM reception also incredible and IMPECCABLY CLEAN!!! The FM indicator, and all dial & meter lamps replaced with new bulbs for years of trouble-free service. We also, removed the entire output / heat sink section, removed all the output transistors and applied fresh heat sink compound which should be good for another 30 years now. All inputs tested and both side produces clean and even sine waves into static 8 & 4 ohm loads! No power supply hum of any kind. It's dead silent! All functions test fine.
The only issues are cosmetic in that the real, wood, Walnut veneered case has a few scuffs, past repairs and minor 'battle scars' (see photos above).
Following restoration procedures, the unit was ran continuously at medium volume, as all our amplifier / receivers are, into a load with "Loudness" on and both Tone Controls at 10 for 48 hours into a 4 ohm load.
 
 
 
On our test bench, this particular KR-7600, amplifiers each produced 28 volts  per channel for 98 watts per channel @ 8 Ω via discrete output & 23 volts per channel for 132 watts per channel @ 4 Ω via discrete, Metal cased, TO-3 outputs ( 2 each Toshiba 2SB555 and 2SD425) 
(AC draw at idle 0.50A tested)

(Floor noise measured at a low 00.1mvAC on the left and 00.3mvAC on the right)

 
___________________________

 
  Impressive huge Kenwood Silver-face receiver, wrapped in handsome, real Walnut wood veneer case. Features huge, back-lit slide rule analog tuning scale. Very elegant unit when lit in a darkened room. Features include:
  

  - Weighted flywheel analog tuning
  
- A, B, C or A+B speaker positions plus an "Off" speaker position
  - Separate Bass and Treble controls feature high quality de-tented pots
  - Tone Defeat for purest signal path
  - Acoustic tone boost switches (very unusual feature allows +3 or +6dB boost at 50Hz and 800Hz) (This is in addition to the normal loudness switch this unit also features listed below)
 - Built-in Hi and Sub filters for reducing 19kHz pilot tone in FM broadcasts, Tape Hiss and the Sub filter for reducing turntable rumble
  - FM muting (separate from Stereo / Mono selector)
  - Stereo / Mono selector (separate from FM muting selector)
 - Aux input
(may also be used for Video / CD / DVD /DAT / VCR / MP3 / iPod® / iPhone® / iTouch® / iGadget / MP3 / XM® / SIRUS®  etc.)

  - Dual tape monitors with Tape monitor A also featuring a DIN input as well as the standard RCA I/O's
 (Tape Monitors can be used with Tape / Video / CD / DVD / VCR / DAT / MP3 / iPod® / iPhone® / iTouch® / iGadget / MP3 / XM® / SIRUS® CDR (CD recorders as well as for inserting signal processors, such as EQ's, Reverbs, Spatial Enhancers / Dynamic Processors, Noise Reduction units, Special Effects units, Time Delays, etc)
- Tape dubbing A-B
 -  Dual Phono / Turntable inputs
with Built-In Phono Pre-Amp
  - Front mounted 1/4" mic input with On / Off / Volume control (Sound Inject) for adding your voice or music instrument to the playback of your music) (be careful with your speakers if you are going to utilize this!)
  - Loudness control for increasing tone curve at lower volumes
  - Stereo Reverse (handy for troubleshooting speakers, system and audio issues)
  - Selectable 25 µsec De-Emphasis for FM section
   - Front mounted 1/4" stereo headphone jack
  - Tuning window features dual large dual VU meters for tuning and signal strength
  - FM Detector RCA output
  - Dolby Adaptor / additional tape monitor loop (also useful for effects / signal processor units such as reverbs, delays, DBX 3BX, etc.)
 - Rear located, full barrier strip for external antenna connections
  - Triple AC convenience outlets on rear panel with 1 switched and 2 un-switched for a total capacity of 300 watts of accessories
  

  Again, we have completely gone through this receiver. Everything is in fabulous cosmetic condition! Looks near new and sounds great! Very nice looking when lit up at night or in a darkened room!  Measures 20.5" wide x 7" tall x 15.5" deep and weighs an impressive 45 lbs unpacked. Includes our standard 90 day limited warranty.
  KENWOOD KR-7600 STEREO RECEIVER
  Cond. 8+

SOLD 2/14/11

 

 

 

    

NEW ADDITION 2/4/11
(Click on above thumbnails to enlarge photos)

CheckMarkSmall_web.jpg (792 bytes) warranty
VINTAGE STEREO RECEIVER
MCS
MODEL-3223
STEREO RECEIVER
 #...0987
 STEREO RECEIVER
  Circa late 1970's / early 1980's

SOLD 2/21/11

  Receiver has had complete service including all switches, contacts, and controls cleaned for static free performance, complete cleaning inside and out. Even though all dial and meter lights were functioning fine, we proactively replaced them all with new units, for trouble-free service. All control shafts trued, new, main AC fuse holder installed & tuning flywheel bushing disassembled, cleaned of varnished lubricant and re-lubed. We also, removed the entire output / heat sink section, removed all the output transistors and applied fresh heat sink compound which should be good for another 30 years now. All inputs tested and both side produces clean and even sine waves into static 8 & 4 ohm loads! No power supply hum of any kind. It's dead silent! Unit looks and sounds great. Following restoration procedures, the unit was ran continuously at medium volume, as all our amplifier / receivers are, into a load with "Loudness" on and both Tone Controls at 10 for 48 hours into a 4 ohm load.
  
 
On our test bench, the internal amplifiers of this particular unit  #...0987, produced 14.76 volts per channel @ 8 ohms for 27 watts and 12.62 volts @ 4 ohms for 39 watts per channel via TO-3, metal cased outputs with 1 kHz input. (2x Motorola 2N3055 & 2X MJ2955 output transistors)
(AC draw at idle 0.30A tested)

(Floor noise measured at a low 00.1mvAC on both sides)
 ____________________________

  

  
Great MCS (Built by Matsushista, parent company of Technics / Panasonic), Model 3223 analog, stereo receiver with discrete output power amp. This particular line was actually manufactured by Technics and performs up to Technics standards. Features include:
 
 
 - Discrete output power amp section
 - Weighted, Analog, flywheel tuning
  - Analog VU tuning and Signal Strength meters
 - Dual Phono / Turntable input
with Built-In Phono Pre-Ampwith & selector for either magnetic or ceramic cartridge!  (Great for connecting both a "high-fidelity" turntable and also a "lo-fi" / 78 RPM table)
  - Aux input
(may also be used for Video / CD / DVD /DAT / VCR / MP3 / iPod® / iPhone® / iTouch® / iGadget / MP3 / XM® / SIRUS®  etc.)

 - Tape Monitor (Tape Monitors can be used with Video / CD / DVD / VCR / DAT / MP3 / iPod® / iPhone® / iTouch® / iGadget / MP3 / XM® / SIRUS® etc. and Dubbing can be used with CDR (CD recorders) units)
  - A & B, A+B or Off speaker selector
  - Separate Bass and Treble pots
  - Hi "Scratch" filter for reducing the 19kHz pilot tone in FM and tape hiss / electronic hiss & noise and record static
  - Built-in Subsonic Filter to eliminate excess rumble from sources such as turntables
  - Loudness
  - Stereo / Mono selector
  - FM muting
 - Rear located, full barrier strip for external antenna connections
 - Dual external speaker protection fuses
  - Dual AC convenience outlets on rear panel with 1 switched and 1 un-switched totaling 420 watts capacity
  
  
As stated earlier we have completely gone through this unit, checking and testing all functions. Unit looks, performs and sounds GREAT! Measures 18" wide x 15" deep x 6" tall and weighs 24 lbs unpacked. Includes our standard 90 day limited warranty.
  MCS 3223 STEREO RECEIVER
  Cond. 8.5

SOLD 2/21/11

 

 

 

 

 

 

 


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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.

 

 
 

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