Audio Proz Service and Sales


Teac DX-8 noise reduction board

Audio Proz Inv #: 44751

Part #60502881. Excellent #9 condition, tested and working.

$ 68  Contact Us  

Teac DX-8 noise reduction board

Audio Proz Inv #: 44752

Part #60502881. Excellent #9 condition, tested and working correctly.

$ 68  Contact Us  

Otari 5050 transformer

Audio Proz Inv #: 44753

Old version Transformer #ET-11-186. Good #8 condition--leads are cut short but are still usable.

$ 30  Contact Us  

Revox A77 input amplifier

Audio Proz Inv #: 44754

#1.0773.700. #6 condition with repairable crack in board.

$ 14  Contact Us  

Otari 5050 Mechanical Counter

Audio Proz Inv #: 44755

#7 condition.

$ 14  Contact Us  


FYI, Around the database you will often see us describe the condition of units on a scale of 1-10. #10 would mean the product is new from one of our suppliers, such as Behringer, Audio Technica, etc. #9 means the product is in perfect condition but is used, #8 implies there are some minor cosmetic scratches but unit is mechanically perfect, and so on and so forth.


Revox A77 Reproduction Amplifier

Audio Proz Inv #: 44756

#1.077.720. Good #8 condition. Two available.

$ 24  Contact Us  

Revox A77 Oscillator

Audio Proz Inv #: 44757

#1.077.710. Good #7 condition.

$ 22  Contact Us  

Revox A77 Recording Relay

Audio Proz Inv #: 44758

#1.077.715. Good #7 condition.

$ 24  Contact Us  

Revox A77 Main Board

Audio Proz Inv #: 44772

Original part. Main Board from a Revox A77. board # 1.077.435-01. Early version.

$ 30  Contact Us  

Revox A77 Front supply guide roller

Audio Proz Inv #: 44774

with all washers.

$ 24  Contact Us  

Revox A77 Relay Board

Audio Proz Inv #: 44777

#1.077.370-01 early version relay board. Very good #8 condition. Full populated board with relays is $54; or $36 for board with all components but no relays. The relays may need some cleaning to be done by the customer.

$ 36  Contact Us  


Please be aware there is a minimum $4-$6 to ship any part. International orders will be $14-$16 to ship for anything larger than an envelope. Shipping costs are non negotiable, so please, PLEASE do not ask for a part, or for us to search for, or quantify a part if you cannot pay for the shipping.


Revox A77 Front Tape Guide

Audio Proz Inv #: 44782

Front tape guide with screw. 1" size.

$ 14  Contact Us  

Revox A77 Pinch roller

Audio Proz Inv #: 44783

With arm. Good #7 condition.

$ 30  Contact Us  

Revox A77 Record Head

Audio Proz Inv #: 44785

75% good.

$ 30  Contact Us  

Revox A77 transformer

Audio Proz Inv #: 44786

For early version Revox A77 machine. With voltage taps for 150, 220, 130, 250, 110, and 240 volts. Original wire lengths. #7 condition, tested and good.

$ 48  Contact Us  

Revox A77 Capstan Motor

Audio Proz Inv #: 44787

Black square edge rotor with mounting plate. 3.75 or 7.5 speed axle. Good #7 condition.

$ 28  Contact Us  

Revox A77 Headphone Jacks

Audio Proz Inv #: 44788

Original part. headphone jacks from a Revox A77. Early version. #7 condition. Three available.

$ 10  Contact Us  


We offer expert time-saving advice on repairing many types of home and studio equipment, as well as consulting for product and recording issues, at a fair and reasonable cost.  For complex matters, we sometimes must charge a small technical fee.  If we can help solve your repair problem or technical conundrum, give us a call.  (617)926-8020.


Revox A77 Bottom Cover Shield

Audio Proz Inv #: 44789

Original part. Bottom cover shield from a Revox A77. Early Version. #7 condition.

$ 12  Contact Us  

Fostex A-4 parts

Audio Proz Inv #: 44811

Excellent condition reel to reel machine with no reel motors or hub clamps. Many excellent, like new parts available including: - heads $38 - case $14 - pinch roller $20 - knobs $10 - much more

Contact Us  Contact Us  

Teac 3340s knob kit

Audio Proz Inv #: 44830

Complete knob kit, includes all in/out level knobs in very good #8+ condition. Older version knob, black chrome tops.

$ 24  Contact Us  

Teac 3340s timer board

Audio Proz Inv #: 44836

#51670560 and #50483322 available, Condition #8+. $10 each.

$ 10  Contact Us  

Revox A77 Counter

Audio Proz Inv #: 44841

Original part, with 2 large white gear to gear driven version better design. Mechanical counter from a Revox A77. #8 condition.

$ 38  Contact Us  

Teac 3340s Chassis

Audio Proz Inv #: 44842

 Good for boards, controls, and cover. #8 condition. Check our other listings for more parts or call us directly at 617-926-8020.

Contact Us  Contact Us  


We leave "SOLD" items on our website for machines that we often repair and provide parts for. This is to give you an idea of the products we typically carry, and direct you to alternatives you may not know about - we often have substitutes for out-of-stock parts, and are happy to recommend workarounds and different solutions to common problems.


Akai boards

Audio Proz Inv #: 44859

We have many, many parts and boards for Akai reel to reels, including LF5023: $40, KD-A5009:SOLD, LF5026:$18, LF5022:SOLD, LD3141:SOLD, input connector board, KD-A5004:$24, LF5024:$42, KD-A1002:$36, KD-A5003:$30, function play switches, remote connector:$12, reel tables:$26, reel brake hubs:$14, 100KOHM AX2 CONTROLS:$12, tension arms, 24XO-MR motors, counter mechanics, and many more. Most boards and parts cost about $12 to $48 each and usually include shipping. We will dismantle this unit and set prices, the MS-5022 is the most rare and demanded board and can get $88. However check the little IC# you require and we may have it as a separately listed part. 

Contact Us  Contact Us  

Teac AC power cord - for A3300 & A2300 series

Audio Proz Inv #: 44929

Grey power cord, standard fit. Used, in #8 condition.

$ 22  Contact Us