[AMRadio] Help Identify This Transformer and Choke


Patrick Jankowiak recycler at swbell.net
Tue May 10 22:22:39 EDT 2005


Here are the specs on the choke and transformer.

some stupid thing called "sorbs" keeps trying to block my mail.

Patrick Jankowiak wrote:

> T-20C56
> Universal type choke
> inductance 4-10 Henries
> Rated DC current 300mA
> 
> The PA-710 is possibly an older version of the CG-710 which is:
> commercial grade
> +/-1.5dB 40-10,000 cps
> audio output, 20 watts,
> push pull 41, 42, 47, 49, 7B5, 6AK6, 6K6GT
> primary 14K/20K
> secondary 500, 200, 16, 8, 5, 3, 1.5 ohms
> case RC100 (round can with square flange)
> 
> Patrick
> 
> 
> From: David Hollander <n7rk at cox.net>
> 
> 
> Can't find these two in any of the references I have.
> 
> Does anyone recognize these numbers?
> 
> UTC Audio transformer - Type PA-710
> 
> Thordarson Choke -  T20C56
> 
> Thanks,
> 
> Dave N7RK
> 



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