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Philco 70
Tubesforme
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#12

03-27-2017, 08:31 PM
(03-26-2017, 08:49 PM)Radioroslyn Wrote:  Would tune your 70 to 550kc and listen for the oscillator at 810kc or so. Sounds like the oscillator is dyeing at the low end. If so rewind the feedback winding.

I might agree with you if It wasn't for the fact I have a great osc grid voltage at all frequencies. If it is the coil, I can't rewind it at my age anymore so would have to find someone to do it. I have checked for a replacement coil and no one had one.
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Messages In This Thread
Philco 70 - by Tubesforme - 03-26-2017, 07:22 PM
RE: Philco 70 - by Radioroslyn - 03-26-2017, 08:49 PM
RE: Philco 70 - by Tubesforme - 03-27-2017, 08:31 PM
RE: Philco 70 - by Tubesforme - 03-27-2017, 10:09 PM
RE: Philco 70 - by morzh - 03-26-2017, 08:50 PM
RE: Philco 70 - by Tubesforme - 03-27-2017, 03:15 PM
RE: Philco 70 - by Tubesforme - 03-27-2017, 10:06 PM
RE: Philco 70 - by Radioroslyn - 03-26-2017, 09:43 PM
RE: Philco 70 - by Tubesforme - 03-27-2017, 03:07 PM
RE: Philco 70 - by Tubesforme - 03-27-2017, 03:28 PM
RE: Philco 70 - by Radioroslyn - 03-27-2017, 04:22 PM
RE: Philco 70 - by Tubesforme - 03-27-2017, 05:04 PM
RE: Philco 70 - by Tubesforme - 04-06-2017, 03:02 PM
RE: Philco 70 - by Radioroslyn - 03-27-2017, 05:08 PM
RE: Philco 70 - by Tubesforme - 03-27-2017, 08:26 PM



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