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Philco Model 37-38B Questions
jjfritz5528
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Posts: 42
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Joined: Mar 2023
City: Lancaster State, Province, Country: PA
#1

10-14-2023, 12:32 PM
Just starting the restoration on this DC set.
1. The connection to the A+ from the Volume Pot is not there. I think it needs to be, but just want to confirm. Also the #23 capacitor on the wiper is 0.015mf on the schematic, but 0.005mf installed, and appear to be original.
2. The Audio Output transformer has one of the Primary halves open. Anyone have a suitable replacement? Push-Pull, 3 Watt, 4 ohm output, ~350 ohm DC resistance. Theory question - Why are the 2 halves of the Audio Interstage & Output transformer Primaries unequal resistance?
   
Thanks
John N3MUN
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Messages In This Thread
Philco Model 37-38B Questions - by jjfritz5528 - 10-14-2023, 12:32 PM
RE: Philco Model 37-38B Questions - by morzh - 10-14-2023, 01:33 PM
RE: Philco Model 37-38B Questions - by radiorich - 10-14-2023, 01:49 PM
RE: Philco Model 37-38B Questions - by morzh - 10-14-2023, 03:51 PM
RE: Philco Model 37-38B Questions - by morzh - 10-19-2023, 08:31 PM



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  1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Electronic Restoration