NEW ADDITION 12/20/10
(Click
on above thumbnails to enlarge photos)
warranty
VINTAGE
AKAI
STEREO INTEGRATED AMPLIFIER
AM-2200
AM2200
#...0493
Circa 1977-'79
MIJ
SOLD 12/20/10
|
NEW ADDITION 10/20/07
(Click
on above thumbnails to enlarge photos)
warranty
AKAI
AM-2400 AM2400 STEREO
INTEGRATED AMPLIFIER Circa 1977-'79 MIJ
SOLD 8/12/08 |
|
NEW LISTING
11/27/07
(click on
above thumbnails to enlarge photos)
warranty
PRE-OWNED AUDIO CENTRON / SLM POWER AMPLIFIER RMA-1000 RMA1000
PROFESSIONAL / STEREO
STABLE INTO 2 Ohms! MADE IN THE USA! Circa 1986-94
SOLD 3/29/17
SHIPPED TO IOWA
This is
a REAL, 'old skooool' built, CLASS A/B power amp. NOT class d, class g,
class t or whatever class marketers are calling them this week, to be
the lightest and cheapest amp you can buy, that weighs a couple lbs, but
a REAL amp. It's got SIXTEEN output transistors in it!
2 rack space, Audio Centron, RMA-1000 power
amplifier. Great for small "All-in-One" speakers, stage monitors, wedge
monitors or running horns or mids in a Bi-Amp / Tri-Amp system or for
running Low end / subs in mono-mode.
Features:
- Stable down to 2 Ohms! - - Power rated as follows;
8 Ohms = ~1xx.(text
archived)...
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT?
While this unit was originally rated at ~xxwpc @ 8Ω,
on our test bench, both this unit's amplifiers produced
peak power of
30 Volts per channel for
xxWatts per channel @ 8
Ω
via discrete output
& 27.7 Volts per channel for
xx
Watts per channel @ 4 Ω via eight discrete, Motorola, Metal cased, (TO-3)
MJI5002 & MJI5001 outputs.
Again,
as stated before,
our
technician has completely refurb'd
this
Audio Centron RMA-1000, stereo
Power-Amp, cleaning and testing all and it gets our full
'Certification'.
Both speaker protection relays just replaced with new.
We have
completely gone through the unit cleaning and testing all.
Unit works great.
Only minor issue is that the "Channel B" input attenuator
has a blank spot in the first 40% that does not respond to cleaning. Not
an issue once you have amp up to operating level.
SPECS:
On our test bench, both amplifiers produce
perfectly clean and symmetrical sine waves at both 8 & 4 ohm loads.
We tested both internal amplifiers to the above specs, and found them
accurate. This is a great performing,
fan cooled amp.
On a personal note; I've actually been
using this amp in my studio as a rehearsal amp, but can't really have
any 'fan cooled' amps in that environment, so am going to have to go a
different route. Measures 19" wide x
16.5 overall depth / 13.5"
rack depth x 3.5" tall
and weighs
35 lbs unpacked. Includes our standard 30 day
limited warranty. AUDIO CENTRON RMA-1000 Condition 8
SOLD 3/29/17
SHIPPED TO IOWA
(Above text, in it's entirety, property of
www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright
Information' page for details)
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|
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(click on above thumbnails to
enlarge photos)
B&K AV2500 5-CHANNEL POWER AMPLIFIER
for sale As-Is for repair B&K AV2500 MSRP ~$600.00 SOLD
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BARNEY OLIVER INTEGRATED AMPLIFIER
SOLD 11/26/04
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CARVER PREMIERE AV-705x THX 5-CHANNEL POWER AMPLIFIER
SOLD
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CARVER PRE-AMP / PREAMPLIFIER C-1 / C1
ON HOLD FOR SHOP USE
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NEW
LISTING
6/24/08
(click on above thumbnails to
enlarge photos)
VINTAGE CARVER
MODEL M-400A
M400A M-400 M400
"CUBE" POWER AMPLIFIER
AMP
ONE SIDE OUT Circa late 1980-83 SOLD for sale
Great project for someone who is versed in repairing and caring for original
Carver Cubes, or just needs a decent, single channel power amp. This M-400a
has a great sounding left side, but a right side that shuts down at 1.5V
output @ 8 ohms. What we know: Current draw at idle:
0.6 A Right channel output:
xxvolts @ 8 ohms =xxwatts 39.5 volts @ 4 ohms =xx watts Left channel output:
1.5 volts @ 8 ohms = .28 watts (tested into brick-wall load with 1kHz input)
DC output; L = 11.5 mv, R = +9.3 mv All Front panel LED's function.
Amp has numerous scuffs and scratches including the very obvious one
shown on the face. No dents. Functioning right channel sine wave output
looks great all the way up to clip! As-Is SOLD
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CARVER M-500 STEREO POWER AMPLIFIER
SOLD
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CROWN IC 150A STEREO PRE-AMPLIFIER CIRCA 1977-83
SOLD
|
NEW LISTING
5/4/12
(Click on above
thumbnails to enlarge photos)
warranty
PRE-OWNED CROWN PS-200 PROFESSIONAL STEREO POWER AMPLIFIER CLASS-A / CLASS
A-B #...7317 MADE IN THE USA!
Our
technician has completely gone through
and 'Certified'
this unit.
Unit
bench checked / tested. Amp has been cleaned
inside and out. Attenuators are 'sealed' for your protection and never
need cleaning! All functions have been tested and pass with flying
colors! Amp designed using Huge, Power Supply Transformer and
Massive, very efficient, externally located, vertically oriented
heat sinks, for sufficient cooling. This amplifier is in both great
electronic and physical shape. Looks NEAR NEW and sounds fantastic! All
inputs tested and both side produces clean and even sine waves! No power
supply hum of any kind. It's dead silent! Following restoration
procedures, we burned it in, in the shop at continuous high volume for 4
hours straight and it functioned flawlessly.
I have owned and sold many Crown power-amps and they are famous for a
good reason. Very quiet, solid, reliable and REAL power.
On our test bench, this
particular Crown PS-200 power amplifier, #...7317, unit's amplifiers
produced 28.4 volts at 8 Ohms per channel for 100 continuous watts, and
27.1 volts @ 4 Ohms for 183 watts / channel discrete TO-3, output
transistors.
Again, as stated
before,
our
technician has completely refurb'd
this
Crown PS-200, stereo Power-Amp,
cleaning and testing all and it gets our full
'Certification'.
Comes with e-copy
/ pdf download of the original Crown PS-200 brochure. Measures standard 19" 'rack-width' wide x 10.25" depth x 5.35" tall (3-rack
spaces) and weighs 25 lbs unpacked. Includes our standard 30 day limited
warranty. CROWN PS-200 POWER AMPLIFIER Cond. 8.5 PRE-OWNED
(C)
M.R. SOLD 2-20-13 SHIPPED TO SOUTH CAROLINA
(Above text, in it's entirety, property of
www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright
Information' page for details)
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|
(Click
on above thumbnails to enlarge photos)
PRE-OWNED CROWN STEREO PRE-AMP CROWN PSL-2 "STRAIGHT LINE" MADE IN THE USA! Circa 1981-92
SOLD
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NEW
LISTING
10/13/12 (Click
on above thumbnails to enlarge photos)
warranty
PRE-OWNED CROWN STEREO PRE-AMPLIFIER CROWN PSL-2 "STRAIGHT LINE"
#...2351 MADE IN THE USA! Circa 1981-92
(C) M.R. SOLD 1/21/13 SHIPPED TO NEW YORK
(Above text, in it's entirety, property of
www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright
Information' page for details)
|
|
NEW LISTING
3/31/14
(Click on above
thumbnails to enlarge photos)
warranty
VINTAGE DYNACO STEREO POWER AMPLIFIER DYNACO "STEREO 120" POWER AMP Circa 1969-78
MADE IN U.S.A. SOLD 10/16/15 SHIPPED TO NEW MEXICO
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NEW
LISTING 12/27/12 (Click
on above thumbnails to enlarge photos)
warranty
VINTAGE DENON STEREO INTEGRATED AMPLIFIER
DENON PMA-757 STEREO INTEGRATED AMP #...0026 Circa 1984-86
MIJ
SOLD 1/1/13 SHIPPED TO MISSOURI
Our
technician has completely gone through
and 'Certified'
this unit.
Following ext / int visual inspection entire unit was cleaned and out including all
contacts, switches and controls.
Switches now clean sounding and performing solidly. Silicone heat sink pads installed. All nine (9) 'Function Indicator' / Spkr
lamps replaced regardless of current condition. Output section bias / DC offset adjusted
to spec conditions. All functions tested for perfect operation. All inputs tested and both
side produces clean and even sine waves! No power supply hum of any
kind. It's dead silent! Following electronic refurb, entire unit was
cosmetically detailed. Great looking brushed aluminum face plate or the
original aluminum knobs. Following restoration procedures, the unit was
run 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.
While this amp was originally rated at 80 wpc, on our test bench the
internal amplifiers of this particular unit, #...0026, produced 29 volts
per channel at 8 ohms for 105 watts per channel and 26.6 volts at 4 ohms
for 176 watts per channel via discrete, TO-3 outputs (2x 2SB489 & 2x
2SD1110) Overall Idle current draw measured @ 350mA. DC offset / out adjusted to
and measured at <6mV on either side. Bias set to 10mV. Very quiet with Floor noise measured at <0.1mVAC. ____________________________
Great performing and VERY handsome looking Denon PMA-757 Integrated
Amplifier. Great unit to...
From the original broch;
' "High Spee... Denon PMA-757 Features include: -
'DC' (Direct Co...(text
archived)...
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT?
Original DENON PMA-757 Specifications:
Design
type: 2 Chann....(text
archived)...
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT?
Again, as
stated before, our technician has completely refurb'd this Denon PMA-757
Stereo Integrated amplifier, cleaning and testing all and it gets our
full
'Certification'.
All
functions test perfectly. Great control / pre-amplifier for just about
any stereo system / power amp. This is a fabulous amp. Sonically superb
following our techs work. Very musical....Check that
'Slew Rate' above!!! Lots of solid power / punch.
Unit looks and sounds great! Includes a pdf 'e' copy
download of the Denon
PMA-757 Owners / Users Manual.
Measures 17" wide x 15.5" deep x
5.5" tall and weighs 26 lbs unpacked. Includes our
30 day limited warranty. Denon PMA-757 Stereo Integrated amplifier Condition
9
SOLD 1/1/13 SHIPPED TO MISSOURI
(C) R.R.
(Above text, in it's entirety, property of
www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright
Information' page for details)
|
warranty
DENON POA-4400 MONAURAL POWER AMPLIFIER
SOLD
|
|
DYNACO 120 A STEREO POWER AMPLIFIER
SOLD
|
(Click
on above thumbnails to enlarge photos)
warranty
DYNACO PAT-4 STEREO PRE-AMPLIFIER MADE IN THE USA!
Preamp amp
Circa 1967-73
SOLD 9/20/08
|
NEW LISTING 4/25/16
(Click on above thumbnails to enlarge photos)
warranty
VINTAGE DYNACO PRE-AMP
DYNACO PAT-4 STEREO PRE-AMPLIFIER
#...5899 MADE IN THE USA! Circa 1967-73
for
sale
SOLD 1/24/17
SHIPPED
TO GEORGIA
Our
technician has completely gone through
and 'Certified' this unit
cleaning
contacts, controls and pots. Replaced 'loose feeling'
tape monitor switch with another original Dynaco pre-amp switch.
Pots and switches are all super high quality. All functions tested
perfectly. All original knobs intact and no bent control shafts.
__________________________________
One
of the classic, "old standby's" of the audio world. The Dynaco PAT-4
Pre-Amp. Brushed aluminum face with matching "milled" look knobs. This
is also a VERY WELL DESIGNED & BUILT unit:
Dynaco Pat-4
features:
-
Separate.......(text
archived)...
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT?
Dynaco Pat-4
Original
Specs:
Frequency
Response:
High level inputs - ±xxdB from 10 Hz to
x0 KHz, Low level inputs
- ±1 dB from 20 Hz to 20 KHz
Distortion at rated 2 volt output: THD less than
x% 20 Hz
tx KHz IM less than xx% with any combination of test frequencies
Hum and Noise: Magnetic Phono: xxdB below a 1xV reference signal
High level: xx dB below a 0.5 volt signal Gain: Magnetic Phono:
xxB at
1000 Hz High Level: xxdB Tone Control Range: ±xdB at
xHz
±1xdB atxKHz
Maximum Output: 10 Volts into high impedance;xVolts
into x
Ω
. Impedances: Magnetic Phono: x,000
Ω Tape Head:
x,000
Ω
High level: xx,000
Ω
Audio Output:x
Ω
To Tape: From low level inputs,
xΩ . From high level inputs, same
as source Amplifier input: Nominal load 1x
Ω or higher Inputs: Low
level or high level RIAA magnetic phono or ceramic phono NAB 7-1/2" tape
head Special (normally microphone) Tape amplifier, Tuner, Spare high
level, or TV, etc. Front panel high level Outputs: Tape
input ahead of controls; 2 Audio outputs
(one switched by front panel jack)
This
was from Dynaco's first series of.......(text
archived)...
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT?
One note
about Dynaco Pat-4 pre amps is that, like a few other 'vintage' units,
is due to the close proximity of the input jacks, you will need to
utilize fairly 'normal' jacketed RCA connectors, as there is not enough
room to 'squeeze' some of the 'fatter' RCA jacks (usually seen on 'high
end' 'interconnects').
All functions have been tested and pass with flying colors!
Minor scratches on top sheet metal cover and the only
other issue is that the face panel does not have 'On-Off' silk-screened
on it. It may never have had it, or it may have worn off. Pre-amp
looks decent and sounds
great.
Includes an 'e-copy' pdf download of the Dynaco PAT-4 owners / users /
instruction manual.
Unit
measures 13.5" wide x 9" deep x 4.5" high and weighs ~4 lbs unpacked.
Includes our standard 30 day limited warranty.
Cond. 8.5
SOLD 1/24/17
SHIPPED
TO
GEORGIA
(C) R.R.
(Above text, in it's entirety, property of
www.oaktreevintage.com / Oak
Tree Enterprises, LLC. See 'Copyright
Information' page for details)
|
EICO HF-20 TUBE MONO POWER
AMP AMPLIFIER SOLD
|
(Click
on above thumbnails to enlarge photos)
EICO HF-60 HF60 TUBE MONO POWER AMP
AMPLIFIER
SOLD 4/20/06
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NEW ADDITION 7/15/08
(Click
on above thumbnails to enlarge photos)
warranty
EMERSON
STEREO INTEGRATED AMPLIFIER
A-32 A32 Circa 1977-'79 SOLD 12/4/08
|
NEW ADDITION
11/17/17
(Click
on above thumbnails to enlarge photos)
warranty
REFURBISHED /
SERVICED VINTAGE
FISHER INTEGRATED POWER AMPLIFIER FISHER CA-271 (CA-1271) STEREO INTEGRATED AMPLIFIER
NOT GOING TO WIN ANY 'BEAUTY CONTEST' BUT
MAKES UP IN PERFORMANCE #...8451 Circa late 1980's MIJ SOLD 3/19/18 SHIPPED TO CONNECTICUT
ü
Our technician has completely gone
through and 'Certified' this unit.
ü
Following both internal and external visual inspection, the
entire unit was cleaned out including all contacts, switches and
controls. Switches now clean sounding and performing
fine.
ü Silicone
heat sink compound inspected for ‘suppleness’
ü Output
section bias / DC offset adjusted to factory spec.
ü Solder
joints reflowed on all possible high heat and stress points
ü 'Dashboard'
illumination bulbs replaced with new, and balance of indicators checked
ü All
functions tested for perfect operation.
ü All
inputs and functions tested.
ü Both
amplifier sides produce clean and even sine waves! No power
supply hum of any kind. It's dead silent!
ü Following
electronic refurbishing, the entire unit was cosmetically
detailed (still has quite a few 'battle
scars'
ü Following
restoration procedures, the unit was ran continuously at medium
volume, as all our amplifier / receivers are, into a
4 Ohm
load with
"Loudness" on and both Tone Controls at 10 for 48 hours.
On our test bench, each
internal amplifier of this particular unit, #...8451,
produced peak power of 34
Volts
@ 8Ω per
channel for 144
Watts
/
channel and 28
Volts @ 4Ω per channel
196 Watts
/ channel via 4 discrete output
devices at 1kHz. AC Idle current at .5A. DC
offset adjusted to <2mV!!!
L&R. Floor noise <0.1mVAC. ____________________________
This Fisher CA-271, Integrated
Amplifier was a 'sleeper' when we originally acquired it. We thought
it would be too 'recent' to bother with, but then......(text
archived)...
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT?.
____________________________
Fisher CA-271Features include:
......(text
archived)...
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT?
Original FISHER CA-271 Specifications:
AMP SPECIFICATIONS:
Power output:
xxxWPC
min RMS @ 8 Ohms & no more than 0.x%
THD @ xxkHz THD: <0.xx% @
full rated power IHF IMD: 0.xx%
@ full rated power & 8 Ohms......(text
archived)...
HEY, WHY ALL THE 'X'd' OUT
/ OMITTED SPECS AND TEXT?
Freq Response of power amp
section: xxkHz w/ deviation of ±0.2dB Damping
factor: >xx @ 8Ω / 1kHz Signal to noise ratio:
90dB (line) Input sensitivity- Phono / All Others:
xxmV (MM) / 1xmV (all at 50kΩ)
EQ
with
centers as follows: 63Hz,
250Hz, 1kHz, 4kHz, and 16kHz. Loudness Control: +8dB @ 100Hz and +4dB @10kHz
Max Power Consumption:
480 Watts
PHONO SECTION SPECS: Freq Response:
xxkHz w/ RIAA deviation of ±0.2dB S/N:
>xxdB......(text
archived)...
HEY, WHY ALL THE 'X'd' OUT
/ OMITTED SPECS AND TEXT?
Input Sensitivity: xxmV @ 50kΩ Phono Overload:
1xmV
Again, we have done the previously stated refurbishment /
restoration work on this unit to insure it's performance, and it
gets our full
'Certification'. All functions tested
for perfect operation. As we stated earlier, this unit
isn't going to win any 'beauty contests' (see
photos above). Performs and sounds great! We can
include an 'e' copy, PDF of the Fisher CA-271
/ CA-1271 Service manual if the purchaser wishes.
Measures 17.25" wide x 4.25"
tall x 10.5" deep and weighs an
impressive 20 lbs unpacked.
Includes our
standard 30 day limited warranty. Cond.
7-7.5 (due to scuffs, scratches, dings) FISHER CA-271 INTEGRATED AMPLIFIER SOLD 3/19/18 SHIPPED TO CONNECTICUT
(Above text, in it's entirety, property of
www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright
Information' page for details)
|
NEW LISTING 4/26/13
(Click on above thumbnails to enlarge photos)
warranty
PRE-OWNED FISHER INTEGRATED POWER AMPLIFIER FISHER CA-276 STEREO INTEGRATED AMPLIFIER #...8443 Circa
late 1980's MIJ
SOLD 5/23/13 SHIPPED TO CALIFORNIA
ü
Our technician has completely gone through and
'Certified' this unit.
ü
Following both internal and external visual inspection, the entire unit was
cleaned out including all contacts, switches and controls. Switches now
clean sounding and performing solidly. Controls are smooth and silent.
ü
Silicone heat sink compound inspected for ‘suppleness’
ü
Output section bias / DC offset adjusted to factory spec.
ü
Solder joints reflowed on all possible high heat and stress points
ü
All indicators checked
ü
All
functions tested for perfect operation.
ü
All
inputs and functions tested.
ü
Both amplifier sides produce clean and even sine waves! No power supply hum
of any kind. It's dead silent!
ü
Following electronic refurbishing, the entire unit was cosmetically
detailed.
ü
Great looking with no cosmetic issues and unit looks near NEW.
ü
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, each internal amplifier of this particular unit,
#...8443, produced peak power of 28 volts @ 8Ω per channel for 196 watts /
channel and 41 volts @ 4Ω per channel 210 watts / channel via 8 discrete
output devices at 1khz. (4X 2SC3182 & 4X 2SA1265). AC Idle current at .35A.
DC offset adjusted to <11 mV L&R. Floor noise <0.3 mVAC. ____________________________
(C) R.R.
SOLD 5/23/13 SHIPPED TO CALIFORNIA
(Above text, in it's entirety, property of
www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright
Information' page for details)
|
|
NEW ADDITION
4/2/10
(Click
on above thumbnails to enlarge photos)
warranty
FISHER
VINTAGE
STEREO PRE- AMPLIFIER
CC-3000
CC3000
#...0544
STEREO
PRE-AMPLIFIER
amp
Circa
1980-81
MIJ
SOLD 8/27/10
|
FISHER
TX-1000 INTEGRATED AMPLIFIER
SOLD
|
VINTAGE GROMMES INTEGRATED
TUBE AMPLIFIER
GROMMES 10PG-8
SOLD
|
NEW ADDITION 1/30/08
(Click
on above thumbnails to enlarge photos)
warranty
HAFLER DH-200
#...5074 STEREO
POWER AMPLIFIER
SOLD 2/26/08
|
NEW LISTING 4/25/16
(Click on above thumbnails to enlarge photos)
warranty
HAFLER
STEREO POWER
AMPLIFIER
HAFLER DH-200
#...1120 MADE IN THE USA! Circa 1979-82
(C) R.R.
SOLD 10/21/16
SHIPPED
TO GEORGIA
(Above text, in it's entirety, property of
www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright
Information' page for details)
|
NEW LISTING
3/26/14
(Click on above
thumbnails to enlarge photos)
warranty
VINTAGE HAFLER STEREO POWER AMPLIFIER HAFLER P-225 'PRO AUDIO' AMPLIFIER
OAK TREE VINTAGE'S SPEAKER AUDITION AMP #...1809 Circa 1984-87
MADE IN U.S.A.
(C) M.R. SOLD 10/4/14 SHIPPED TO TEXAS
(Above text, in it's entirety, property of
www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright
Information' page for details)
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|
|
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HARMAN KARDON hk 870
POWER AMPLIFIER Circa '84-'87
SOLD
|
HARMAN KARDON hk SYSTEM SOLD
|
HARMAN KARDON hk 825 STEREO PRE-AMPLIFIER
SOLD 1/1/05
|
HARMAN KARDON HK CITATION ELEVEN
II
STEREO
PRE-AMPLIFIER
SOLD 11/17/03
|
NEW ADDITION
11/2/11
(Click
on above thumbnails to enlarge photos)
warranty
HARMAN KARDON HK CITATION ELEVEN / II
STEREO PRE-AMPLIFIER MADE IN THE USA! Circa 1973-76 in originally optional wood case! SOLD 4/5/13 SHIPPED TO MISSOURI
(Above text, in it's entirety, property of
www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright
Information' page for details)
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|
|
HARMAN KARDON CITATION "TWELVE" 12 POWER AMPLIFIER
M
SOLD 11/4/04
P
|
HARMAN KARDON HK A-402 STEREO INTEGRATED AMPLIFIER
SOLD
|
NEW
LISTING
8/14/12
(Click on above
thumbnails to enlarge photos)
warranty
VINTAGE HARMAN KARDON CITATION-16 / SIXTEEN CLASSIC AND SERIOUS STEREO POWER AMPLIFIER CLASS-A / CLASS A-B #...0147 Circa 1976-79 MADE IN THE USA!
SOLD 2/3/13 SHIPPED TO COLORADO
Our
technician has completely gone through
and 'Certified'
this unit.
Unit
bench checked, necessary repairs made, cleaning /
detailing inside and out, fully tested and Certified. Our technician
reset the voltage to correct 120vAC. He then replaced EVERY
electrolytic capacitor, including the four 10,000μF filter caps.
He
actually 'upped' them to 12,000μF.
Prior to that, the amp did 'function' to a degree that
the average 'ear' might no notice any issue with, however it had THE
WORST condition capacitors we have ever come across
(and we're talking many 'thousands' of units). Even considering
we restore gear from the 1940s! The main filter caps had electrolyte so
dried up, and so bad, you could actually hear the the crystallized
electrolyte 'rattling around' inside when we shook them!!! The amp
should have 'smoked' when powered up, but nothing 'drew' alarmingly on
the vari-ac, however the amp did have -550mV on one side and -135mV on
the other. Again, it still produced sound that the average person might
perceive as 'passable'. I say all that to make you aware of the
IMPORTANCE of having an amp gone thru, by a qualified technician. Most
folks would not have noticed any of the issues until something 'went
south' catastrophically.
All 16 original RCA brand, TO-3 output transistors removed, bad or
questionable mica insulators replaced and fresh heat-sink compound
installed. He also replaced the disintegrated 'plastic' pilot lamp
escutcheons / lamp assemblies and changed the neon lamps from 'red' to
'blue'. As stated, the technician also replaced the balance of the
electrolytic capacitors which then allowed the amp to be properly
adjusted for bias and DC offset. Both main wafer switch wafers cleaned /
burnished. LED panel mounting 'shored-up'. Following above operations, all functions have been tested and pass with
flying colors! Amp designed using Huge, TRUE DUAL Power Supply
Transformers, with separate filtration, and MASSIVE, very efficient,
externally located, vertically oriented heat sinks, for sufficient
cooling. This amplifier is in both great electronic and physical shape.
While it's not going to win any 'beauty contests' due
to numerous, minor 'battle scars', there are no dented / bent corners
or heat sinks (a miracle considering it's mass)
(see above photos for details). Performs
and sounds fantastic! All inputs tested and both side produces clean and
even sine waves! No power supply hum of any kind. It's dead silent!
Following restoration procedures, we burned it in, in the shop for 48 hours and it functioned flawlessly (we
actually took it into our 'demo' system and 'rocked-it' HARD on our Altec VOTT's. HUGE sound and thump).
On our test bench,
this particular hk Citation 16 power amplifier, #...0147, unit's
amplifiers produced 34.5 volts at 8 Ohms per channel for 148 continuous
watts, and 30 volts @ 4 Ohms for 225 watts / channel discrete TO-3,
output transistors. (16x RCA 0404. (Idle AC current draw @ .6A. & DC
offset out = <7mV on either side. Bias set to 9.9mV. Floor noise
measured at <0.1mVAC either side)
hk Citation Sixteen Features:
- Completely separa.....(text
archived)...
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT?
Harman Kardon Citation Sixteen / 16 Specifications:
- Rated RMS Output: .....(text
archived)...
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT?
Again, as stated
before, we have completely gone through this HK
Citation Sixteen / 16, Power Amplifier cleaning and testing all and it gets our full
'Certification'.
....(text
archived)...
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT?
Comes with e-copy
pdf download of the hk
Citation Sixteen / 16 Owners Manual and Technical Manual.
Measures standard 19" 'rack-width' wide x 14" depth x
9.5" tall (5-rack
spaces) and weighs 55 lbs unpacked. Includes our standard
30 day limited
warranty. HARMAN KARDON HK CITATION 16 / SIXTEEN POWER AMPLIFIER Cond. 8
SOLD 2/3/13 SHIPPED TO COLORADO
(Above text, in it's entirety, property of
www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright
Information' page for details)
|
|
|
HARMAN KARDON
STEREO POWER AMP PA 2100
SOLD
|
NEW
ADDITION 5/19/09
(Click
on above thumbnails to enlarge photos)
warranty
HARMAN KARDON / HK STEREO INTEGRATED AMPLIFIER
PM660
PM660 #....0622 Circa 1980-84
MIJ (C) C.B.S. SOLD 10/25/09
|
|
|
FOR SALE
|
|
NEW ADDITION 10/15/07
(Click
on above thumbnails to enlarge photos)
warranty HEATHKIT
AA-1219
AA1219 STEREO INTEGRATED AMPLIFIER SOLD 11/5/07
|
HEATHKIT
AP-1800 AP1800 STEREO
PRE-AMPLIFIER PRE-AMP SOLD 9/2/05
|
|
JVC JA-S77 STEREO INTEGRATED AMPLIFIER AMP
SOLD
|
|
|
FOR
SOLD GALLERY OF
KENWOOD AMPS /
PRE-AMPS, CLICK HERE!
|
VINTAGE LEAK TL / 12 PLUS TUBE AMP
&
VINTAGE LEAK "POINT-ONE PLUS" TUBE PRE-AMP
CIRCA 1958
SOLD
|
NEW LISTING 4/17/13
(Click on above thumbnails to enlarge photos)
warranty
VINTAGE LUXMAN INTEGRATED POWER AMPLIFIER LUXMAN L-80V L80V
STEREO INTEGRATED AMPLIFIER
#...1924 Circa 1976-80 MIJ for sale
SOLD 7/10/13 SHIPPED TO WISCONSIN
ü
Our technician has completely gone through
and 'Certified' this unit.
ü
Following both internal and external visual inspection, the entire unit
was cleaned out including all contacts, switches and controls. Switches
now clean sounding and performing solidly. Controls are smooth and
silent.
ü
Output Transistors removed and individually tested for leakage and
proper specs
ü
Silicone heat sink compound was replaced on all output devices upon
replacements.
ü
Output section bias / DC offset adjusted to factory spec.
ü
Solder joints reflowed on all possible high heat and stress points
ü
Power/Dial indicator lamp replaced.
ü
All functions tested for perfect operation.
ü
All inputs and functions tested.
ü
Both amplifier sides produce clean and even sine waves! No power supply
hum of any kind. It's dead silent!
ü
Following electronic refurbishing, the entire unit was cosmetically
detailed.
ü
Great looking brushed aluminum face plate or the original tinted
aluminum knobs shows no wear and unit looks near NEW.
ü
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, each internal
amplifier of this particular unit, #...1924, produced peak power of 23
volts @ 8Ω per channel for 66 watts / channel and 20 volts @ 4Ω per
channel 100 watts / channel via discrete TO-3 metal case output devices
at 1khz. (2X 2SC1116A & 2X 2SA747A). AC Idle current at .2A. DC offset
adjusted to a SUPER LOW <0.1 mV L&R. Floor noise <0.6
mVAC.
____________________________
LUXMAN L-80V INTEGRATED AMPLIFIER
(C) M.R. SOLD 7/10/13 SHIPPED TO WISCONSIN
(Above text, in it's entirety, property of
www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright
Information' page for details)
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-
|
|
|
|
FOR
SOLD GALLERY OF
MARANTZ AMPS /
PRE-AMPS, CLICK HERE!
|
(Click
on above thumbnails to enlarge photos)
VINTAGE MCINTOSH MA230 / MA-230
TUBE INTEGRATED AMP AMPLIFIER
SOLD 4/20/06
|
NEW ADDITION
4/21/08
(Click
on above thumbnails to enlarge photos)
warranty VINTAGE
MCINTOSH INTEGRATED PRE AMP / AMPLIFIER
VINTAGE MA-6100 / MA6100
#AP2905
SOLD 5/20/08
|
VINTAGE MCINTOSH MC-40 TUBE MONO-BLOCK POWER AMPLIFIER
SOLD
|
NEW ADDITION
6/08
(Click
on above thumbnails to enlarge photos)
MCINTOSH 240 STEREO TUBE AMP /
AMPLIFIER
SOLD
6/08
|
NEW ADDITION
4/21/08
(Click
on above thumbnails to enlarge photos)
warranty
MCS 3865
STEREO
INTEGRATED AMPLIFIER
AMP
Circa
1978-'80
REFERENCE PHOTOS ONLY. UNIT ALREADY SOLD
|
-
|
NEW ADDITION
9/11/08
(Click
on above thumbnails to enlarge photos)
warranty
PRE-OWNED MITSUBISHI STEREO
POWER
AMPLIFIER
M-A4370
MA4370
#...7501
(C)
C.B.S.
SOLD 12/23/10
|
NEW ADDITION 2/10/05
MITSUBISHI DA-U155 STEREO INTEGRATED AMPLIFIER AMP
SOLD 2/11/05
FOR SALE
|
NEW ADDITION
4/21/08
(Click
on above thumbnails to enlarge photos)
warranty
MITSUBISHI
DA-U155 DAU155
STEREO
INTEGRATED AMPLIFIER
AMP
Circa
1978-'80
SOLD 9/28/08
|
NEW ADDITION
6/28/11
(Click on
above thumbnails to enlarge photos)
warranty
NAD STEREO
PRE-AMPLIFIER NAD 1155 Circa
1985-'87
#...9333
MIJ
(C)
M.R. SOLD 6/29/11
(Above text property of
www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright
Information' page for details)
|
NEW LISTING
5/4/12
(Click on above
thumbnails to enlarge photos)
warranty
VINTAGE NAD STEREO POWER AMPLIFIER 2150 2-OHMS STABLE!!! #...6309 Circa 1982-84 MIJ
(C)
M.R.
SOLD 8/2/13 SHIPPED TO OKLAHOMA
(Above text, in it's entirety, property of
www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright
Information' page for details)
|
|
NAD 3020 STEREO INTEGRATED AMPLIFIER
SOLD
|
NEW ADDITION 10/15/07
(Click
on above thumbnails to enlarge photos)
warranty NAD
3020 STEREO
INTEGRATED AMPLIFIER
(C) C.B.S.
SOLD 5/14/08
|
NEW
ADDITION 3/19/18
(Click on above thumbnails to enlarge photos)
warranty
REFURBISHED / SERVICED
VINTAGE
NAD STEREO INTEGRATED AMPLIFIER
NAD 3120 STEREO INTEGRATED AMP
"STABLE DOWN TO 2 Ohms!!!" #...1893 Circa 1984-86
4/6/18 SHIPPED TO JEFF IN MICHIGAN
ü Our technician has completely gone
through and 'Certified' this unit.
ü Following both internal and external visual inspection, the entire
unit was cleaned out including all contacts, switches and controls.
Switches now clean sounding and performing fine.
ü Silicone
heat sink compound inspected for ‘suppleness’
ü We
adjusted / set the Output section bias / DC offset to
BETTER THAN factory spec (check our results below).
ü All
functions tested for perfect operation.
ü All
inputs and functions tested.
ü Both
amplifier sides produce clean and even sine waves! No power supply
hum of any kind. It's dead silent!
ü Following
electronic refurbishing, the entire unit was cosmetically detailed
ü Following
restoration procedures, the unit was ran continuously at medium
volume, as all our amplifier / receivers are, into a
4 Ohm
load
with "Loudness" on and both Tone Controls at 10 for 48 hours.
While this amp was originally rated at 25 WPC
on our test bench the internal amplifiers of this particular unit,
#...1893, produced
19 Volts
per channel at 8 Ohms for 45 Watts per
channel and 16 Volts at 4 Ohms for
64
Watts
per channel via discrete, outputs (2x RCA
2N3055 & MJ2955) Idle current draw .2A DC
offset, while the NAD 3120 service manual
specs anything less than "50mV", and we originally measured
this one, #...1893 at over 44mV / Channel, following our bench
service it's now at
only >2.0mV!!!
on either side. Very quiet with Floor noise measured at
>-60dBm /
0.1 mVAC. ____________________________
NAD 3120 Features include: - Discrete
... (text
archived)...
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT?
NAD 3120
Specifications:
POWER AMP SECTION: Design type: 2 Channel, discrete output, Class A-B Dynamic Headroom at 8 Ohms: +3.0dB
Freq Response of power amp section at "LAB"
input: 10Hz-70kHz
Damping factor: X5 @ 8Ω full
bandwidth
(means VERY TIGHT bass response) (text
archived)...
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT?
Input Impedance:
11kΩ Input
impedance at "LAB" input:
22kOhms
Input Sensitivity (for 1W & rated
output @ 8Ohms): 1V / 2XmV
Cont 'minimum' rated Power:
2x 25 Watts @ 8 Ohms / 20Hz-20kHz
IHF 'Dynamic' Power
(max 'short term' power / channel: 2x
50 Watts @ 8 Ohms 2x
XX Watts @ 4 Ohms
2x XX Watts @ 2 Ohms (text
archived)...
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT?
THD: 0.X% @ 25
Watts & 8 Ohms from 20-20kHz
PRE-AMP SECTION: Signal / Noise:
XXdB @ Tuner / AUX
/ Tape 'shorted' Input Sensitivity Tuner / AUX / Tape @
RCA's
(for 1W output): 180mV THD: 0.0...(text
archived)...
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT?
Loudness Control: +5dB @ 100Hz & +5dB @ 10kHz(-40dB VOL)
Max Input Signal:
>XXV
Input impedance (R/C):
47kOhms / 200 pF
PHONO
SECTION SPECS: Freq Response (RIAA curve):
20-...(text
archived)...
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT?
Again, as stated before, our technician has completely refurb'd this
NAD 3120 Stereo Integrated amplifier,
cleaning and testing all and it gets our full 'Certification'.
All functions test perfectly. ...
Can include a pdf
'e' copy of the NAD 3120 Flyer and / or
Service Manual if the new owner so desires. Measures 16.5"
wide x 10.25" deep x
4" tall and weighs 12
lbs unpacked. Includes our 30 day limited warranty.
NAD 3120 Stereo Integrated amplifier Condition 8.5++
(C) R.R.
4/6/18 SHIPPED TO JEFF IN MICHIGAN
(Above text, in it's entirety, property of
www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright
Information' page for details)
|
(Click on above thumbnails to enlarge photos)
NIKKO TRM-1200 NIKKO INTEGRATED AMP / AMPLIFIER
SOLD
|
|
|
PARAMOUNT PF-5 5 CHANNEL AMPLIFIER. SOLD
|
|
|
NEW LISTING
6/29/12
(Click
on above thumbnails to enlarge photos)
warranty
VINTAGE ONKYO STEREO INTEGRATED AMPLIFIER A-5 / A5 STEREO INTEGRATED AMP #...8374 Circa 1977-80
MIJ
SOLD 9/27/12 SHIPPED TO
WISCONSIN
Our
technician has completely gone through
and 'Certified'
this unit.
Following ext / int visual inspection entire unit was cleaned and out including all
contacts, switches and controls. Balance control potentiometer replaced.
Power switch disassembled, cleaned of old 'sticky' lubes and re-lubed.
Switches now clean sounding and performing solidly. Bad 2SD427 output
transistors replaced, and fresh heat-sink compound applied to all 4
output transistors. Output section bias / DC offset adjusted. All functions tested for perfect operation. All inputs tested and both
side produces clean and even sine waves! No power supply hum of any
kind. It's dead silent! Following electronic refurb, entire unit
.......
HEY, WHY ALL THE 'X'd' (...) OUT /
OMITTED SPECS AND TEXT?
While this amp was originally rated at
XX wpc, on our test bench the
internal amplifiers of this particular unit, #...8374, produced
XX volts
per channel at 8 ohms for
XXwatts per channel and
XX volts at 4 ohms
for
XX watts per channel via discrete, TO-3, metal cased outputs (2x
Toshiba 2SB557 & 2x 2SD427) Idle current draw XXA.
DC out measured at <XXmV on either side.
Very quiet with Floor noise measured at
XXmVAC.
HEY, WHY ALL THE 'X'd' (...) OUT /
OMITTED SPECS AND TEXT?
____________________________
Original Onkyo A-5 Specifications:
Design
type:
XX
POWER AMP SECTION: Freq Response of power amp section; XXkHz Damping factor;
XX @ 8Ω full bandwidth
Signal / Noise;
XXdB
Cont rated Power: 2x
XX watts @ 8 Ohms / 1kHz
2x
XX watts @ 4 Ohms / 1kHz Dynamic rated Power:
@
XX% THD =
2 x
XX watts
/ channel /
4 Ohms or
XX Wpc @ 8 Ohms
OR @
XX% THD =
XX watts
/ channel /
4 Ohms or
XX Wpc @ 8 Ohms THD;
XX% @
XXWatts
& 8 Ohms from 20-20kHz,&
@
XX Watts
&
4 Ohms @ 1W output THD & IMD =
XX%
Input Imp:
XXk
Rated Input:
....(text
archived)...
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT?
PRE-AMP SECTION: Signal / Noise; XXdB @ Tuner / Tape 'shorted' Input Sensitivity
Tuner / Tape @ RCA's;
XXmV @
XXkΩ Freq Response of 'Tape or Tuner';
XXkHz
THD;
XX%
at rated ouput Bass Control; XXdB @ XXhz Treble Control; XXdB @ XXkhz Subsonic
Filter; XXHz
& XdB/Oct Loudness Control; XXdB
@ XXHz & XXdB
@ XXkHz(XXdB VOL)
Muting; XXXdB
PHONO SECTION SPECS; Freq Response;
XXXXkHz
XXdB S/N;
>XXdB!!!, IHF-A Input Sensitivity; XXmV @ 50kΩ Overload limit;
XXmV @ 1k w/ X....(text
archived)...
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT?
Again, as stated
before,
our
technician has completely refurb'd this Onkyo A-5
Stereo Integrated amplifier,
cleaning and testing all and it gets our full
'Certification'..... .....Can
include a pdf 'e' copy of the Onkyo A-5 Service Manual if the new owner
so desires..... ...... Includes our 30 day limited warranty. Onkyo A-5 Stereo Integrated amplifier Condition 8.5
SOLD 9/27/12 SHIPPED TO
WISCONSIN
(Above text, in it's entirety, property of
www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright
Information' page for details)
|
|
|
(Click
on above thumbnails to enlarge photos)
warranty
ONKYO
INTEGRA A-807 A807
STEREO
INTEGRATED
AMPLIFIER
AMP
SOLD 9/26/07
|
NEW ADDITION
(Click on above thumbnails to enlarge photos)
warranty
ONKYO M-501 / M501 STEREO
POWER AMPLIFIER
AMP
SOLD 12/30/05
|
NEW LISTING
3/26/14
(Click on above
thumbnails to enlarge photos)
warranty
PRE-OWNED ONKYO M-506RS POWER AMPLIFIER
ONKYO STEREO POWER AMP
'Military / Euro-Asia' Market Unit
Circa
1980-85
"WORLD AC POWER" ™
MIJ
SOLD
6/2/15 SHIPPED TO HOUSTON
Our
technician has completely gone through
and 'Certified'
this unit.
Unit
bench checked, necessary repairs made, cleaning /
detailing inside and out, fully tested and Certified. Our technician
reset the voltage to correct 120vAC. New bulbs / lamps installed for
'Power', 'Servo', and 'Speaker Selectors'.
Performs
and sounds fantastic! All inputs tested and both side produces clean and
even sine waves! No power supply hum of any kind. It's dead silent!
Following restoration procedures, we burned it in, in the shop for 48 hours and it functioned flawlessly (we
actually took it into our 'demo' system and 'rocked-it' HARD on our...
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT?
From the original Onkyo M-506RS manual,
"...Large, independent...
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT?
And as we all (should) know an amp is only as good as it's power supply! Also from the manual,
"The output stage uses...
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT?
On our test bench,
this particular Onkyo M-506RS power amplifier, #...1883,
unit's amplifiers produced XX.6 volts at 8
Ohms per channel for XXX continuous
watts, and 3XX volts @ 4 Ohms for
XXX watts / channel
via 8 (eight) discrete,
output transistors. (4X 2SA1301 & 4X 2SC3281). (Idle AC current draw @ .6A. & DC
offset out = <2.75mV on either side. Floor noise
measured at 0.03mVAC either side)
Onkyo M-506RS Features:
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT?
Onkyo
M-506RS
Specifications:
- Rated RMS Output:
XXX watts per
channel, min. RMS, @ 8Ω,
both channels driven,
from 20Hz to 20kHz. - Frequency Response:
1XXkHz
@ 8Ω,
both channels driven
- Signal to Noise Ratio: XXdB (20Hz to 20kHz) at full
RMS output
- Total Harmonic Distortion (THD): <0.XXXX%
@ rated output
IMD; 0.XXXX%
@ rated power / 8Ω
- Damping Factor: XX @ 8 Ohms / 1Khz
- Load Impedance: Rated for X
- Input Impedance: XXK Ω nominal
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT?
- Input Sensitivity:
XXV for rated power into 8Ω - Output Connector:
X - Input Connector:
X - Output Monitor:
X
Again, as stated
before, we have completely gone through this Onkyo
M-506rs, Power Amplifier cleaning and testing all and it gets our full
'Certification'.
This
is an...
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT?
.
Comes with an e-copy,
pdf download, of the Onkyo M-506RS Owners Manual and
Service Manual. Measures standard 18 7/8" wide x 16
5/8" depth x
6 7/8" tall and weighs 43 lbs unpacked. Includes our standard
30 day limited
warranty. ONKYO M-506RS POWER AMPLIFIER Cond.
8.5 (only due to scuff on side panel edge)
(C) M.R.
SOLD
6/2/15 SHIPPED TO HOUSTON
(Above text, in it's entirety, property of
www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright
Information' page for details)
|
NEW LISTING 1/10/14 (Click
on above thumbnails to enlarge photos)
warranty
PRE-OWNED
ONKYO
P-306RS /
ONKYO STEREO PRE AMPLIFIER
'Military / Euro-Asia' Market Unit
Circa
1980-85
"WORLD AC POWER" ™
MIJ
(C) M.R. SOLD 7/2/14 SHIPPED TO HOUSTON
(Above text, in it's entirety, property of
www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright
Information' page for details)
|
NEW
ADDITION
6/16/09
(Click
on above thumbnails to enlarge photos)
warranty
ONKYO
STEREO
STEREO PRE-
AMPLIFIER
P-3200
P3200
#...0289 Circa 1990-91 MIJ
SOLD 10/23/09
|
|
FOR
SOLD GALLERY OF
PIONEER AMPS /
PRE-AMPS, CLICK HERE!
|
NEW
ADDITION
6/16/09
(Click
on above thumbnails to enlarge photos)
warranty
PROTON STEREO
POWER AMPLIFIER
PROTON D-1200
Circa 1986-90
(C) C.B.S. SOLD 7/21/09
|
NEW LISTING
4/13/18
(Click on above thumbnails to enlarge photos)
warranty
VINTAGE REALISTIC STEREO INTEGRATED AMPLIFIER
REALISTIC SA-2000
#...1087
Circa
1977
MADE IN JAPAN
(Not Taiwan or Korea like a lot of
'vintage' Realistic gear)
for sale
5/25/18
SHIPPED TO STEVE IN CONNECTICUT
ü Our technician has completely gone
through and 'Certified' this unit.
ü Following ext / int visual inspection entire unit was cleaned inside
and out
ü All
three 'control' PCB's removed to allow cleaning of ALL contacts, switches and control
pots.
ü Bias adjusted to correct spec.
ü Switches and controls now clean sounding and performing solidly
(only exception is the 'High Filter'. It's 'lock'
is a bit 'finicky' so if you want to 'bypass' the Hi-Filter, you need to
engage it rather 'solidly' to get it to lock (stay in) ).
ü All functions tested for perfect operation.
ü All
inputs tested and both side produces clean and even sine waves!
ü No power supply hum of any kind. It's dead silent!
ü Following electronic refurb, entire unit was cosmetically detailed
(It's BEAUTIFUL!!!).
This is first and only one Realistic SA-2000 we've had in
23 years. Classic brushed aluminum face plate
with the original aluminum
knobs.
Following 12+ hours of restoration
procedures, the unit was ran continuously at medium volume, as all
our amplifier / receivers are, into a 4 Ohm
load with "Loudness" on and
both Tone Controls at 10 for 48 hours.
Total technician time to restore
8 hours. (Tech noted on work sheet, "VERY nice build quality inside
and out. Mint condition")
On our test bench the internal amplifiers of this particular
unit, #...1087,
produced 24 Volts per channel at 8 Ohms for
72 Watts per channel
and 20 Volts at 4 Ohms for
100 Watts per channel
via discrete, TO-3 / Metal Cased outputs
(Toshiba 2SD426) (test at 1kHz, single channel at a time).
Idle current draw 0.425A.
Very quiet with Floor noise measured at >00.0
mVAC
/->60dBm.
____________________________
Again, as stated before, our technician has completely refurb'd this
Realistic SA-2000 Integrated Stereo Amplifier, cleaning and
testing all and it gets our full 'Certification'.
Entire unit, including the original brushed aluminum, Face and knobs
are in beautiful condition. Unit looks beautiful and sounds great
with what the restoration tech called "Gutsy" power & punch!
Measures 16" wide x 12.5" deep x
4.75" tall and weighs 21
lbs unpacked. Includes our 30 day limited
warranty!
REALISTIC SA-2000 INTEGRATED AMP
Cond.
9+
(C)
R.R.
5/25/18
SHIPPED TO STEVE IN CONNECTICUT
(Above text, in it's entirety, property of
www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright
Information' page for details)
|
NEW LISTING
12/22/2021
(Click on above
thumbnails to enlarge photos)
warranty
VINTAGE
REALISTIC STEREO INTEGRATED AMPLIFIER / MATCHING
AM/FM TUNER REALISTIC SA-2001
/ TM-1001 Circa 1978-79
SOLD
|
VINTAGE RAULAND TUBE AMPLIFIER RAULAND
MODEL 1805A #39153 CIRCA 1953-54 NOS (NEW OLD STOCK) UNUSED IN ORIG BOX.
UNUSED IN ORIG BOX. STILL HAD
Cardboard surrounds on transformers.
Was vari-AC'd over 30
minutes, in 10 Volt increments, and
finally left to run for a half hour into an 8 Ohm
load. Rated at 20 Wats, from 2 metal
6L6 output tubes. Had small amount of audible
60 cycle hum when turned up past half way. Faithfully reproduced a
number of different test tones both audibly and on a scope. Has control
pods mounted on the ends of fixed cables. No scratches, dents, rust,
corrosion, finish chips, etc. This thing
shines.
Cond. 10.0
SOLD
|
-
|
|
SAE MARK IV "FOUR" CM IVCM STEREO POWER AMPLIFIER
SOLD 9/1/05
|
(Click
on above thumbnails to enlarge photos)
warranty SAE MARK IX "NINE" STEREO PRE-AMPLIFIER MADE IN THE USA!
Preamp amp Circa 1973-74
SOLD 9/23/08
|
|
NEW ADDITION 5/19/09
(Click
on above thumbnails to enlarge photos)
warranty
SANSUI
VINTAGE STEREO INTEGRATED
AMPLIFIER A-707
A707
#...9130 Circa
~1982-85 "WORLD
AC POWER"
™ MIJ
(C) C.B.S.
SOLD
04/09/10
|
|
|
SANSUI AU-317 STEREO INTEGRATED AMPLIFIER
SOLD
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SANSUI AU-555 STEREO INTEGRATED AMPLIFIER
SOLD
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SANSUI AU-555A STEREO INTEGRATED AMPLIFIER AMP
SOLD 3/9/05
Preamp amp
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NEW LISTING
6/15/16
(Click on above thumbnails to enlarge photos)
warranty
SANSUI INTEGRATED
STEREO AMPLIFIER SANSUI AU-717 / AU717
#...2735
"WORLD AC
POWER" ™ Circa
1977-79 M.I.J.
SOLD 1/12/17
SHIPPED
TO WASHINGTON
ü
Our
technician has completely gone through and 'Certified' this unit.
ü
Everything was cleaned inside and out including all switches,
controls and contacts. Cleaned and re-lubed all control shafts.
ü
Internal fuses checked for correct value / function and replaced
where necessary.
ü
‘Multi-Voltage’ switch replaced and correctly set for North
American current.
ü
Solder joints reflowed on all possible high heat and stress points
ü
All output transistors removed and individually tested. Fresh heat
sink compound was used on re-installation, of course.
ü
Amplifier section had output bias and DC offset adjusted to spec
levels after 10 min warm-up.
ü
All functions tested for perfect operation.
ü
Following above procedures, unit was cosmetically detailed inside and out.
ü
All inputs tested and both sides produce clean and even sine waves into
static 8 & 4 ohm loads! No power supply hum of any kind. It's dead silent!
ü
Following restoration procedures, the unit was run continuously at
medium volume, as all our amplifier / receivers are, into a 4 Ohm load with
"Loudness" on and both Tone Controls at 10 for 48 hours.
On our test bench, each internal amplifier of this particular unit,
#...2735,
produced peak power
of 28
Volts per channel at
8 Ohms for 98 Watts per channel and
23 Volts at 4 Ohms for 142
Watts per
channel via discrete, TO-3 /
Metal Cased output
transistors
(Sanken 2x 2SA747 & 2x 2SC1116). AC
Idle current at 500mA.
DC offset adjusted to a SUPER LOW <1.4mVDC
L&R
& floor noise 0.0 mVAC.
____________________________
One
of the classic of the audio world
by Sansui, the 'AU-717' Integrated Amplifier. Super build quality, with great features. This amp essentially looks NEW!
Works great, Sounds FABULOUS AND HUGE! Enough...
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT?.
Sansui AU-717 Features Include:
- Dual AC...
- Discrete
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT?
Original Sansui AU-717 Specifications:
POWER / PRE AMP
SPECIFICATIONS:
Power output: xx Wpc min RMS @
8 Ohms & no more than 0.xx% THD @
20-20kHz
Power Bandwidth: 2xHz THD:
no more than x% THD @ xkHz at full rated power
IHF IMD: x% @ full rated power
& x Ohms
Freq Response of power amp section: x Hz @ 1W /
+0 dB, -3 dB Damping Factor:
x @ 8 Ohms Speaker Impedance:
x
Ohms
minimum
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT?
PRE-AMP SECTION: Signal / Noise Ratio:
xxdB @ Tuner, Aux, Tape A/B
inputs Input Sensitivity AUX / Tape @ RCA's: xxmV @
xxkΩ
@ 1kHz for rated output
Main Output @ RCA's:
xV @ xxkΩ
for rated output
Output AUX / Tape @ RCA's:
xxmV @ xxkΩ Channel Separation @ AUX:
>xxdB
Bass Control: ±xxdB @
xxhz Treble Control: ±xB
@ xxkhz
Subsonic Filter: -3xB @ xHz,
xdB/Oct
High Filter:
-xdB @ xxkHz, xdB/Oct
Loudness Control: +xdB @
xxHz & xdB @ xxkHz
(-xdB Vol Level)
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT?
PHONO
SECTION SPECS: Freq Response:
RIAA
Standard Curve & ±xdB Signal / Noise Ratio:
xdB Input Sensitivity:
xxmV @ xxkΩ
@ 1kHz for rated output Max Input / Overload limit:
xxmV @ 1k w/
xx% THD
Channel Separation @ Phono:
>xdB
Again, we have done the previously stated refurbishment /
restoration work on this unit to insure its performance, and it
gets our full
'Certification'. All functions tested
for perfect operation. This unit is in
essentially NEW cosmetic condition!
Performs and sounds great! This is a very
‘musical’ sounding amp with lot’s of punch!
Includes a pdf, 'e' copy, download of the
Sansui
AU-717 owners / users /
instruction manual as well as a full line Sansui Brochure
from 1978 (compliments of '
www.hifiengine.com '.
Measures 17" wide x 6.75"
tall x 15.25"
deep and weighs an impressive
40 lbs unpacked.
Includes our
standard 30 day limited warranty. Cond.
9.5 Sansui AU-717 Integrated Amplifier
(C) R.R.
SOLD 1/12/17
SHIPPED
TO WASHINGTON
(Above text, in it's entirety, property of
www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright
Information' page for details)
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SANSUI C-77 PRE- AMPLIFIER
SOLD
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-
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(Click
on above thumbnails to enlarge photos)
warranty
SANSUI QS-500 QUAD
DECODER / QUADRAPHONIC REAR CHANNEL STEREO
INTEGRATED AMPLIFIER
AMP
*"WORLD
AC POWER" ™
MADE IN JAPAN! Circa
likely 1972-'74
SOLD 8/4/08
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NEW ADDITION
12/18/09
(Click
on above thumbnails to enlarge photos)
warranty
SCOTT VINTAGE STEREO INTEGRATED AMPLIFIER A-457
A457
AMP
#...0860 Circa 1977-'79
SOLD 5/13/10
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NEW
ADDITION
1/13/08
(Click
on above thumbnails to enlarge photos)
warranty
SHARP STEREO
POWER AMPLIFIER
SM-7700CD
#...5303
SOLD 5/8/09
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NEW LISTING 11/09/05 (Click on above thumbnails to enlarge photos)
warranty
SONY TA-1010 STEREO INTEGRATED AMPLIFIER SOLD 1/3/06
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(Click
on above thumbnails to enlarge photos)
warranty
SONY
TA-AX390
TAAX390
STEREO INTEGRATED AMPLIFIER
SOLD 11/8/07
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NEW LISTING 9/26/16
(Click on above thumbnails to enlarge photos)
warranty
SONY INTEGRATED STEREO AMPLIFIER
SONY TA-F5A 8 Ohm output GREAT PROJECT / HOME RECORDING STUDIO MONITOR AMP
#...0420
Circa
1978-79 M.I.J.
SOLD 11/10/16
SHIPPED
TO ILLINOIS
ü
Our
technician has completely gone through and 'Certified' this unit.
ü
Everything was cleaned inside and out including all switches,
controls and contacts. Cleaned and re-lubed all control shafts.
('Bass' pot retains minor noise still)
ü
Internal fuses checked for correct value / function and replaced
where necessary.
ü
Solder joints reflowed on all possible high heat and stress points
ü
Power supply circuit repairs and component replacement
carried out.
ü
All output transistors removed and individually tested. Fresh heat
sink compound was used on re-installation, of course.
ü
Amplifier section had output bias and DC offset adjusted to spec
levels after 10 min warm-up.
ü
All functions tested for perfect operation.
ü
Following above procedures, unit was cosmetically detailed inside and out.
ü
All inputs tested and both sides produce clean and even sine waves into
static 8 & 4 ohm loads! No power supply hum of any kind. It's dead silent!
ü
Following restoration procedures, the unit was run 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, each internal amplifier of this particular unit,
#...0520,
produced peak power
of
23.5+ Volts per channel at
8 Ohms for 69 Watts per channel. AC
Idle current at 500mA.
DC offset adjusted to a SUPER LOW <1.4mVDC
L&R
& floor noise 0.1 mVAC.
____________________________
...
Again, we have done the previously stated refurbishment /
restoration work on this unit to insure its performance, and it
gets our full
'Certification'. All functions tested
for perfect operation. This unit is in
essentially NEW cosmetic condition!
All edges crisp and nick free.
Performs and sounds great! This is a very
‘musical’ sounding amp with lot’s of punch!
...
Measures
16.2" wide x 5.75"
tall x 14.5" deep and weighs
16 lbs unpacked.
Includes our
standard 30 day limited warranty.
Cond.
9 SONY TA-F5A Integrated Amplifier
SOLD 11/10/16
SHIPPED
TO ILLINOIS
(C) R.R.
(Above text, in it's entirety, property of
www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright
Information' page for details)
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(Click
on above thumbnails to enlarge photos)
SOUNDSTREAM
SOUND STEAM
SIGNAL PROCESSOR
C-2
C2 PRE-AMP DOLBY / THX
Circa 1993
Made
in USA SOLD 9/22/09
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TECHNICS SU-7300 SU7300
STEREO INTEGRATED AMPLIFIER
SOLD 8/17/05
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NEW ADDITION
10/24/08 (Click on above thumbnails to enlarge
photos)
warranty
TECHNICS
STEREO INTEGRATED AMPLIFIER
SU-8055
SU8055
#E021 Circa 1979-80 "WORLD
AC POWER"
™
MIJ
SOLD
12/3/08
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TECHNICS SU-V9 SUV9 INTEGRATED AMPLIFIER
SOLD 12/30/03
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Technics SU-G90 INTEGRATED AMPLIFIER
SOLD
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NEW ADDITION
4/22/08
(Click
on above thumbnails to enlarge photos)
warranty
TECHNICS
SU-V303 SUV303 #A015 STEREO
INTEGRATED AMPLIFIER
SOLD 5/8/08
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NEW ADDITION 10/20/07
(Click
on above thumbnails to enlarge photos)
warranty
TOSHIBA
SY-335 SY335 STEREO
PRE-AMPLIFIER
AMP
SOLD 1/2/08
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FOR
SOLD GALLERY OF
YAMAHA AMPS /
PRE-AMPS, CLICK HERE!
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TO SEE OUR SELECTION
OF CURRENTLY AVAILABLE STEREO AMPS, PRE-AMPS AND POWER AMPS CLICK HERE
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