Audio Proz Service and Sales


Beyer 80-000-007

Audio Proz Inv #: 71604

High quality 600 ohm input impedance to 50K output impedance, with electrostatic shield,  few available, New item, (priced each)

$ 22  Contact Us  

Mic Input Transformers

Audio Proz Inv #: 70177

ACEM 70500852 - High quality, superior shielded, 600 to 50k mic transformer, 1" diameter, 12 available ($22 each), 

ACEM 70500166 - 600 to 600 ohm line transformer, up to +14DBM use, similar to most standard fit, 1.5" square fit, (depending use probable fit some square shield around), 4 available ($22 each)

$ 22  Contact Us  

United Transformer Corp LS-141

Audio Proz Inv #: 61330

500 ohm input  -  500/500 ohm output     Salvage-- Minor dings  #8 Condition

$ 68  Contact Us  

UTC A-18

Audio Proz Inv #: 61327

United Transformer Corp.  9 tap transformer (15k split to 80k split) #9 condition 2 available, (priced each)

SOLD  Contact Us  

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Talema ta60E

Audio Proz Inv #: 58775

Power transformer. 115/220 VAC. 9V taps on winding (2) available. 9/10 condition, mounted on board.

$ 18  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.


Talema ta60E

Audio Proz Inv #: 58774

Power transformer. 115V/220V, 18V taps on winding. (2) available. 9/10 on circuit board.

$ 18  Contact Us  

Musashino TOA OT-333

Audio Proz Inv #: 55914

100 watt, 70 volt line transformer. Condition: 9

$ 24  Contact Us  

Freed Transformer Co. No: 32035

Audio Proz Inv #: 55815

Transistor output transformer. Scully part no.020-304-001. From Scully type 280. Scratch on print face, otherwise good shape, #9

$ 140  Contact Us  

UTC A-18

Audio Proz Inv #: 55814

15K ohm - 80K ohm. Max level +/- 15dBM. From Scully type 280. Excellent condition, lettering intact, #9

SOLD  Contact Us  

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UTC A-39

Audio Proz Inv #: 55813

600 ohm primary, 2K ohm secondary. Max level +/-10dBM. From Scully type 280. Excellent condition, lettering intact, #9

$ 30  Contact Us  

Audio Speaker Autoformer

Audio Proz Inv #: 55172

Step up, down. High build quality, but unknown brand. Impedance match transformer, 28 ohm to 4 ohm. 30 watt capable. Used to allow loading of extra satellite speakers to be added to any stereo amp. Call for more details. Condition: 9

$ 16  Contact Us  


Re: International Shipping: We ship internationally often and have yet to encounter a problem or complaint. We are very careful to test the equipment before it’s packed and then to double box the machine with added protection when needed for front panels, etc. We are not amateurs or an ebay store; we know these machines very well and know what it takes to get them to you safely. We use USPS priority internationally which seems to be the cheapest. If you prefer another carrier (you should know who delivers to your area reliably) please let us know. Also please be aware of any tariffs that you may be responsible for upon pick up on your end. International shipping may be expensive but we will make sure it is not a headache on top of the cost. PLEASE NOTE THAT SHIPPING INTERNATIONALLY WILL BE A MINIMUM OF $16 EVEN FOR SMALL PARTS.


UTC 0-17 C6718

Audio Proz Inv #: 51610

Excellent mic input transformer. 500 ohm to 50k ohm, +8dBm. Excellent condition.

SOLD  Contact Us  

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Teac TR-207 transformer

Audio Proz Inv #: 50089

with wires and mounting plate, excellent condition.

$ 24  Contact Us  

United Transformer S-55

Audio Proz Inv #: 49764

for tube filament supply. 6.3v CT, 3amp. Used in very good condition.

$ 16  Contact Us  

United Transformer Y-6431

Audio Proz Inv #: 49763

Output matching or inter-stage transformer, no specs available. Very good #8 condition with some minor paint scratches on unit.

SOLD  Contact Us  

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Adjust-A-Volt variable transformer T51u

Audio Proz Inv #: 49631

120v-6A, 50-60Hz, open frame transformer variac, 4.5" square metal mounting plate. Excellent condition.

$ 40  Contact Us  

Apex 460 transformer XFM0013

Audio Proz Inv #: 49529

New.

$ 24  Contact Us  


We are a very different kind of shop. To help ensure a smoother experience please read our letter about our current shop policies.

We keep our database up to date with almost 10,000 items in stock. If you see a part number and a price, we have that item in stock. 

Customers outside of the US, please note that international shipping can be costly (US Post $16 minimum - up to 8oz or 226g). We are glad to combine orders to reduce shipping costs. Take a look at our shipping policies for more information and estimates of prices and shipping time.


Apex 460 transformer XFM0013

Audio Proz Inv #: 49527

Power transformer for use in Apex 460 supply. New.

$ 24  Contact Us  

UTC LMI 50 KR47

Audio Proz Inv #: 48141

Filter transformer. Excellent #9 condition.

$ 20  Contact Us  

UTC AR-535

Audio Proz Inv #: 48140

Input transformer, 1 to 1.58 ratio, multitap. AR-535, C6748. Very good #8 condition.

SOLD  Contact Us  

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Jensen JE-123-SL 835

Audio Proz Inv #: 48138

Audio transformer for DBX or Behringer output. +24dBm. Very good #8 condition. Pair available. $66 each (call us at 617-926-8020 for best pricing)

$ 66  Contact Us  

Uni-Sync #7512-10k

Audio Proz Inv #: 48129

Input balancing transformer. Very good #8 condition.

$ 12  Contact Us  

Thordarson 24s75

Audio Proz Inv #: 48072

Audio output transformer, can be used as +14 to +24dBm balanced line drive transformer. Primary 500 ohm, secondary 3.2 or 6.8 ohms. 5watts. New in box.

$ 24  Contact Us  


We keep our database up to date with almost 10,000 items in stock. If you see a part number and a price, we have that item in stock.


UTC P-1245 B-6299-1

Audio Proz Inv #: 48071

Excellent condition.

SOLD  Contact Us  

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Audio Frequency Transformer 9072882 77-44

Audio Proz Inv #: 48070

6 watts, 60 cycles. Terminals 1-2 5k ohms; terminals 3-4 1.6k ohms. Can be used as line drive output transformer, +24dBm. Excellent condition.

$ 34  Contact Us