Posts: 239
Threads: 10
Joined: Dec 2013
City: Columbia, SC
Greg, that's correct according to my radio, and my oscillator half way works, but it may be worth swapping lugs 1 and 2 just to make sure.
I can give you the connections for the RF coil if you still need them, the section is definitely working fine on my receiver. Have you tried injecting a 260khz signal to the grids of the 44 and 36 tubes? The instructions are on the schematic at NA. If that signal gets through, then I believe the oscillator circuits are tuned, and the problem is with the feedback.
I ordered 38awg wire to rewind, since Mr. Philco said it worked for him. Would like to completely rule out that coil. Out of curiosity, what material are you using to separate the two coils?
Messages In This Thread
RE: Model 89 Cathedral - by skyscraper - 03-10-2014, 11:16 AM
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Recent Posts
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Need to purchase some accessories for restoration of my Old Philco Radio
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Here is a list of resources found in our online library that you might find useful. Mike's Gobs of Knobs email addres...klondike98 — 01:46 PM |
First Radio restoration
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Hi Tubeman,
Welcome to the Philco Phorum. Phamily Phriendly Pfun with Phine Pholks Phull of Philco Phacts. (See a p...MrFixr55 — 12:33 PM |
First Radio restoration
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You could post in the WANTED ADs section here on the Phorum and see if anyone has an RF generator that they want to sell...klondike98 — 11:55 AM |
Zenith H725
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Good ideas, thank you Arrange and Rich. I have the adhesive aluminum foil already and can try that immediately.
More ...EdHolland — 10:18 AM |
Graphics for majestic 1050 dial glass.
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Murf;
I found this thread on the ARF, the first photo has a pretty good view of the dial glass.
Regards
ArranArran — 01:12 AM |
Zenith H725
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hello Ed,
how about that speacial tape used for ducting it's like foil or how about thin piece of
aluminum roof flash...radiorich — 12:19 AM |
Zenith H725
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Ed;
One material that I have seen, but never tried for this was material for making exhaust gaskets, it's similar to ...Arran — 11:42 PM |
Zenith H725
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I just remembered, I have some hi temp silicone rubber material which could do the trick. Or a piece of FR4 laminate. Th...EdHolland — 08:39 PM |
Zenith H725
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The PSU filter cap arrived today (thank you USPS!) so I will work on that later.
Meanwhile, I have the dial, speaker...EdHolland — 06:42 PM |
Philco 610B oscillator wiring
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Thanks Terry. After checking my notes I think I recorded about -10v at the 6A7 G4/control grid. The screen grid (G3 &...Tubester — 05:59 PM |
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