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Philco 70 output transformer
#20

The old unit has the NC disease after all, pulled the first detector coil, found it. Top of the primary bad shape, crumbling cellulose. Pulled several wraps of crumbling primary wire and reattached, guess the cotton is gone everywhere. The secondary has green in it also. Put t back in and could hear a big difference, more punchy bass and trimmers bounce more like they should. So a total rewind is in order. Have not pulled the oscillator coil yet, who knows what's in there, the other coils looked good when I pulled those, no green. I am surprised at how the 47 pumps out, hear the potential in this radio. Could try a bluetooth chip driving the negative kink in a 24 to two tuned circuits to each side to an extra 47, driving two baffled 8's out each side of the cab, stereo, just dreaming.


Messages In This Thread
Philco 70 output transformer - by radio1 - 05-06-2020, 07:49 PM
RE: Philco 70 output transformer - by Radioroslyn - 05-06-2020, 08:32 PM
RE: Philco 70 output transformer - by radio1 - 05-06-2020, 08:40 PM
RE: Philco 70 output transformer - by klondike98 - 05-06-2020, 10:45 PM
RE: Philco 70 output transformer - by rfeenstra - 05-06-2020, 11:31 PM
RE: Philco 70 output transformer - by klondike98 - 05-06-2020, 11:56 PM
RE: Philco 70 output transformer - by radio1 - 05-07-2020, 05:45 AM
RE: Philco 70 output transformer - by Steve Davis - 05-07-2020, 08:58 AM
RE: Philco 70 output transformer - by radio1 - 05-07-2020, 09:59 AM
RE: Philco 70 output transformer - by radio1 - 05-07-2020, 11:20 AM
RE: Philco 70 output transformer - by morzh - 05-07-2020, 11:40 AM
RE: Philco 70 output transformer - by rfeenstra - 05-07-2020, 12:01 PM
RE: Philco 70 output transformer - by radio1 - 05-07-2020, 12:21 PM
RE: Philco 70 output transformer - by morzh - 05-07-2020, 12:46 PM
RE: Philco 70 output transformer - by rfeenstra - 05-07-2020, 12:56 PM
RE: Philco 70 output transformer - by radio1 - 05-07-2020, 07:34 PM
RE: Philco 70 output transformer - by morzh - 05-07-2020, 08:46 PM
RE: Philco 70 output transformer - by radio1 - 05-08-2020, 04:17 PM
RE: Philco 70 output transformer - by morzh - 05-08-2020, 04:51 PM
RE: Philco 70 output transformer - by radio1 - 05-18-2020, 06:52 PM
RE: Philco 70 output transformer - by radio1 - 05-19-2020, 08:26 PM
RE: Philco 70 output transformer - by radio1 - 05-27-2020, 08:19 PM
RE: Philco 70 output transformer - by radio1 - 06-06-2020, 08:22 PM



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