Audio Proz Service and Sales


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  

United Transformer Corp LS-141

Audio Proz Inv #: 61330

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

$ 68  Contact Us  

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  

UTC HE-812 transformer

Audio Proz Inv #: 44241

Like new, in package. Looks to be an interstage matching transformer..

$ 48  Contact Us  

UTC AR-533

Audio Proz Inv #: 47545

RCA 8446104-1. Input:Output is 1:1.58. Input impedance appears to be variable 50 to 1000, 10K to 50K output impedance. Perfect for high quality mic preamp with variable input matching. Used in very good #8 condition. 4 pieces available.

$ 40  Contact Us  


All Remotes are now 25% off or Free Shipping!!!  (Reel to Reel remotes excluded).


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  

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  

Essex Wire Corp C-280-A

Audio Proz Inv #: 48063

Class 1A transformer, in shielded metal can, 1.5" square. 250-4000 to 600 input, or output line balancing transformer. +24dB. Very good #8 condition, pair available.

$ 32  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  

UTC CR-725

Audio Proz Inv #: 47525

Primary ohms 100; secondary ohms 600; max level +20dBm; frequency response 1/2dB 30-15Kc. Four pieces available.

$ 30  Contact Us  

Raytheon 292-11020G1

Audio Proz Inv #: 48068

150/600 ohms, +8dB max level, balanced line transformer in sealed shielded can. Excellent condition.

$ 30  Contact Us  


We know you have many options for purchasing audio equipment and parts, and we truly appreciate your business.  We strive to offer good products at competitive prices.  While we can't always match the prices of one isolated reseller, we make up for it by carefully selecting, testing, and finding unique and special rare parts, and we are here for the long run.  We guarantee everything we sell and we hope it helps you to enjoy a great listening experience.

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.


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  

Ampex #4580200-12

Audio Proz Inv #: 48067

Matching input transformer. Very good #8 condition.

$ 26  Contact Us  

Halldorson 24s59

Audio Proz Inv #: 48056

Audio output transformer, 5watts, good for mini guitar amp projects or balanced line drive. Primary 25k ohms, secondary 3.5 ohms. New.

$ 24  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  

Halldorson 22s75

Audio Proz Inv #: 48057

Output transformer, can also be used as unusual mic pre or +24dBm 600 line drive. Primary 7k ohm, secondary 50 ohm.

$ 24  Contact Us  

Apex 460 transformer XFM0013

Audio Proz Inv #: 49529

New.

$ 24  Contact Us  


OUT OF STATE CUSTOMERS:
Contact us if you are interested in purchasing an item.
We prefer PayPal payments.
We only ship to VERIFIED PayPal Addresses
For customers who do not have a PayPal account we also take Credit Card over the phone.

Please be aware that there is a minimum $4-$6 to ship any part.


Apex 460 transformer XFM0013

Audio Proz Inv #: 49527

Power transformer for use in Apex 460 supply. New.

$ 24  Contact Us  

Teac TR-207 transformer

Audio Proz Inv #: 50089

with wires and mounting plate, excellent condition.

$ 24  Contact Us  

Musashino TOA OT-333

Audio Proz Inv #: 55914

100 watt, 70 volt line transformer. Condition: 9

$ 24  Contact Us  

United Transformer Corp H-42A

Audio Proz Inv #: 47646

10k to 10k ohm, max level 2dB. Excellent choice for certain tube cathode coupling or direct box matching. Ten pieces available, excellent condition.

$ 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  

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  


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.


UTC LMI 50 KR47

Audio Proz Inv #: 48141

Filter transformer. Excellent #9 condition.

$ 20  Contact Us  

Allied Control Co. MH-18D relay

Audio Proz Inv #: 48069

26.5vDC, 240 ohms. New.

$ 18  Contact Us