Audio Proz Service and Sales


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 LS-12x

Audio Proz Inv #: 44414

Primary ohms: 500, 333, 200, 125, 50. 80ohms secondary. Excellent #9 condition with ribbon connector pre-soldered to pins.

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UTC HE-812 transformer

Audio Proz Inv #: 44241

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

$ 48  Contact Us  

UTC A-24 transformer

Audio Proz Inv #: 44083

168-46. 15k ohms primary; 500, 333, 200, 125, 183, 486, 50, 283, 485 ohms secondary. Max level +15dbm.

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UTC A-18 transformer

Audio Proz Inv #: 44080

D72 44. 15k ohms primary, 80k ohms secondary. Max level +15dbm. 9-leg. Excellent condition.

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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.


Chicago Standard Transformer Corp BO-1

Audio Proz Inv #: 44062

Plate voltage to 600ohm output. For tube preamp with feedback tap similar to Pultec. Frequency response 30 - 15000 (+20 DBM), P.W.V. 535. 8 legs. Excellent #9 condition. Pair available, price is per transformer.

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UTC A-11 "A65 28" transformer

Audio Proz Inv #: 44061

Primary ohms - 50, 200, 50. Secondary ohms - 50K, P.P. Max level +5DBM. 20~-20KC, 500v hipot. Magnetic shield. 9 leg. Red Print on side. Excellent #9 condition.

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U.R.E.I 8 80 12614-C Transformer

Audio Proz Inv #: 43916

Original transformer. 4 legs. Excellent #9 condition. Pair available, price is per transformer.

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Tube Output transformer #562100

Audio Proz Inv #: 43253

NEW STOC. For EL34 type tubes. EIA 606-543, for Fender and Marshall EL34 output. (not available at this time)

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