Mystery Cap in 42-327

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Mystery Cap in 42-327

Vic Gibson
Junior Member

Posts: 25
Threads: 5
Joined: Jul 2013
City: Adairsville, GA

07-04-2013, 06:54 PM

Hey thanks for your thoughts. My "guess" was 3000pF but I do not know which dots are 1st and 2nd etc... Anyway, the slug has very little effect on the output - hardly any change over multiple turns of the slug. But, you could say there is sort of a peak - however broad. Thing is I've already changed all the caps - except the ones in the IF coils. Putting my scope probe on the plate of the 2nd 7B7 (pin 2) kills the oscillation and I actually get stations. ??!! Dont have a 3000pF cap. Wonder if a .0047 would work? I'm at my wits end with this thing. I get how radios work and the IF works, but clearly I have something more to learn! - just can't beat this oscillation thing.

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Messages In This Thread

Mystery Cap in 42-327 - by Vic Gibson - 07-04-2013, 03:52 PM

RE: Mystery Cap in 42-327 - by BrendaAnnD - 07-04-2013, 04:42 PM

RE: Mystery Cap in 42-327 - by Vic Gibson - 07-04-2013, 04:50 PM

RE: Mystery Cap in 42-327 - by Mondial - 07-04-2013, 06:41 PM

RE: Mystery Cap in 42-327 - by Vic Gibson - 07-04-2013, 06:54 PM

RE: Mystery Cap in 42-327 - by Mondial - 07-04-2013, 07:06 PM

RE: Mystery Cap in 42-327 - by Vic Gibson - 07-04-2013, 07:33 PM

RE: Mystery Cap in 42-327 - by John R - 07-05-2013, 01:37 PM

RE: Mystery Cap in 42-327 - by Vic Gibson - 07-05-2013, 02:40 PM

RE: Mystery Cap in 42-327 - by Vic Gibson - 07-06-2013, 09:41 AM

RE: Mystery Cap in 42-327 - by John R - 07-06-2013, 11:44 AM

RE: Mystery Cap in 42-327 - by Vic Gibson - 07-06-2013, 04:33 PM

RE: Mystery Cap in 42-327 - by codefox1 - 07-06-2013, 07:15 PM

RE: Mystery Cap in 42-327 - by Vic Gibson - 07-20-2013, 03:22 PM

RE: Mystery Cap in 42-327 - by John R - 07-20-2013, 04:30 PM

RE: Mystery Cap in 42-327 - by Vic Gibson - 07-20-2013, 05:11 PM

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