[R-390] The R-390A IF transformers internal resistors for StewWarner

Renee K6FSB k6fsb.1 at gmail.com
Tue Oct 6 20:18:52 EDT 2020


Jacques-yesterday I had a chance to drive and obtain the deck
IF deck details
Stewart-Warner Electronics
P/N SM-D-343621
Order 20139-PC-60-A1-51
S/N 4535
T501- 34K 5% 1/2W both
T502- 34K 5% 1/2W both
T503- 68K 5% 1/2W, none
T503 appears to have been replaced? interior looks original but the top 
is marked T503
  American-Trans-Coil
  Richmond Hill, L.I.N.Y.
             121-1
above is on exterior of IF can
T501, T502 had no covers when I received the deck, I found odds'n ends 
covers.
currently this IF deck is fully operational- my notes state after all 
bypass caps etc... replaced it worked.
Hope this helps
Renée, K6FSB


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