[Boatanchors] Looking for SNC Xmfr P3546 for Johnson T/R Switch

Ron Youvan ka4inm at gmail.com
Wed Sep 23 21:59:45 EDT 2015


> Based on other Electronic T/R switches I have seen the Power Transformer
> is most likely 125 - CT - 125 volts 50 ma high voltage side and the
> filament is 6.3 volts at an amp. A Stancor PS-8416 may work

   I have seen similar transformers in one tube audio turntable preamps
and slightly more robust ones in two tube (stereo) preamps, but either
may have 12 Volt filament windings.  (for the 12AX7 which is operable
with 12 or 6 Volts)
-- 
   Ron  KA4INM - Youvan's corollary:
                 Every action results in unwanted side effects.


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