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Author Topic: Modulation Transformer Model #s needed.  (Read 2492 times)
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Ed/KB1HYS
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« on: October 09, 2009, 09:40:35 AM »
I need a mod tranny for a pair of 811's on a 4-250.  The books say that the 811's want 12400ohms impeadance plate to plate and the 4-250 wants 13500 ohms.

Can anyone suggest a model/manufactuere to watch for?   
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73 de Ed/KB1HYS
Happiness is Hot Tubes, Cold 807's, and warm room filling AM Sound.
 "I've spent three quarters of my life trying to figure out how to do a $50 job for $.50, the rest I spent trying to come up with the $0.50" - D. Gingery
Steve - WB3HUZ
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« Reply #1 on: October 09, 2009, 10:16:49 AM »
UTC: S22, CVM-4, CVM-5

Stancor: A-3898, A-3899

Kenyon: T-496, T-442

Thordarson:  T-19M17

I'm sure there are others of the non-multimatch variety.
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Ed/KB1HYS
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« Reply #2 on: October 09, 2009, 08:51:47 PM »
Thanks!  It's easier to have a list of workable transformers than to run and look up specs everytime only to find out that it's not the one.
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73 de Ed/KB1HYS
Happiness is Hot Tubes, Cold 807's, and warm room filling AM Sound.
 "I've spent three quarters of my life trying to figure out how to do a $50 job for $.50, the rest I spent trying to come up with the $0.50" - D. Gingery
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