Philco model 18 (code 121) - HELP!
Posts: 143
Threads: 11
Joined: Dec 2013
City: Ithaca NY
OK, so if you touch the grid cap to the RF amp (#78 ) does it
also bring in the signal?
If the answer is yes then the problem is somewhere between
the grid of the 78 and the antenna terminal
If the answer is no then the problem is somewhere between
the 78 tube and the 6A7 grid.
Could be any number of things, open coil being one of
the possibilities. Could also be a missing or broken wire,
a bad connection, a bad capacitor, to name a few.
You're going to just have to start eliminating possibilities
one at a time
Herb
Messages In This Thread
RE: Philco model 18 (code 121) - HELP! - by hsusmann - 01-04-2014, 10:09 AM
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Ok MrFixr55,
I have tried the DeoxIT D5 on the band switch and even though it has relieved the tension I felt when turn...osanders0311 — 11:11 AM |
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Is there a reference somewhere where you can punch in Philco part numbers and see what models those parts were used in?Jim Dutridge — 10:17 AM |
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Hi OSanders,
Look carefully at the band switch. Turn it slowly and "wiggle" it around the desired band. ...MrFixr55 — 12:33 AM |
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I think that RCA and GE introduced metal tubes in the USA in 1936. I don't know if they were being made by RCA, GE or b...MrFixr55 — 11:20 PM |
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Vlad95,
Thank you for the stringing guides and wow there are so manyosanders0311 — 06:01 PM |
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A pre war Hallicrafters, and an early one too, very nice! 1936 is pretty early for metal tubes too, which would explain ...Arran — 05:58 PM |
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Thanks Rod,
"When you hear the background hiss and no station it usually indicates that the oscillator quit" ...osanders0311 — 05:52 PM |
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RodB
:beerchug:Vlad95 — 10:22 AM |
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Vlad, you nailed it. Swiss and German roots.RodB — 09:54 AM |
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Well this is a Hallicrafters SX/9 circa 1936.
No real issues so far although I dodged a real bullet with a cap that was...bridkarl — 07:59 AM |
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