1935 Philco 144

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1935 Philco 144

RodB
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Posts: 997
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Joined: Feb 2015
City: Roseville, MN

05-23-2020, 09:19 AM

Hi Jeff - I would try feeding a modulated 460 KHZ IF into the control grid of the 6A7. If that works then you have a large part of the circuit that works. Then you can work backwards through the switch with different frequencies. Or maybe the oscillator isn't running.

If the IF doesn't work then move forward to the next control grid until you get a signal.
Rod

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Messages In This Thread

1935 Philco 144 - by PhilcoPhan1936 - 05-23-2020, 12:02 AM

RE: 1935 Philco 144 - by RodB - 05-23-2020, 09:19 AM

RE: 1935 Philco 144 - by morzh - 05-23-2020, 11:07 AM

RE: 1935 Philco 144 - by PhilcoPhan1936 - 05-23-2020, 12:14 PM

RE: 1935 Philco 144 - by Scott D - 05-23-2020, 04:22 PM

RE: 1935 Philco 144 - by morzh - 05-23-2020, 04:40 PM

RE: 1935 Philco 144 - by Scott D - 05-23-2020, 04:56 PM

RE: 1935 Philco 144 - by PhilcoPhan1936 - 07-20-2020, 07:34 PM

RE: 1935 Philco 144 - by Radioroslyn - 07-20-2020, 08:22 PM

RE: 1935 Philco 144 - by PhilcoPhan1936 - 07-20-2020, 08:36 PM

RE: 1935 Philco 144 - by PhilcoPhan1936 - 07-20-2020, 08:40 PM

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