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Author Topic: Thordarson Modulation Transformers For Sale  (Read 3070 times)
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WD8INC
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« on: January 07, 2016, 11:52:56 AM »

I have (2) more Thordarson modulation transformers for sale, both broadcast grade.  I'm making room for other projects and I believe these are the last (2) I've got.  If you want broadcast quality audio, these will deliver.  Big iron, big performance.

(1) p/n T-49956-B (built for Gates to their specs)
Power rating - 250VA
Operating frequency - 30 - 10,000 Hz
Input impedance 6200 - 25000 ohms
Series or Parallel input (tapped windings)
Output impedance 10,000 ohm  
P.U.V. style case
62 lbs.
$500 OBO + shipping from 45036

(1) p/n 21M65 Multi-Match Series
Power rating - 500W
Input impedance - 2000-20,000 ohms
Input current - 320 MADC
Output impedance - 2000-20,000 ohms
Output current - 320 (series) or 640 (parallel) MADC
P.U.V. style case
55 lbs.
$500 OBO + shipping from 45036

Shipping via FedEx Ground, double walled carton, xmfr bolted to plywood base and foamed in place.  Will consider trades, can deliver to hamfest, drive reasonable distance, etc. (work out details via email).  Contact me off list for pictures, questions, etc.

John WD8INC
jcaldwell@rbcos.com
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WD8INC
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« Reply #1 on: January 07, 2016, 12:25:53 PM »

Someone has asked about the TMC GPT-750-B modulation transformers I had available.  They have both been sold.
John WD8INC
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