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Philco 70 tuning backward?
#13

update : I changed the oscillator mica to the proper 110 pf . And that did not change the problem . It is as if no rf and oscillator freq is going across this transformer(#6) . But is going cap to cap on the tubes .And that is why it stops when I put the shield on . I think .
Double checked the 1st detector coil (#6) and 17 ohms primary and 4.6 secondary ohms seems incorrect. Does anyone know what this should be ? I am thinking it should be close to 1:1 ratio. I may have that information coming with prints I ordered . But most of the ones I have spare check close to 1:1 ohms .
 The only coils I have to substitute are 455 khz peak . So that is where I am at with it .At least eliminating
some things .Thanks!
Bill


Messages In This Thread
Philco 70 tuning backward? - by btoher - 10-07-2016, 10:34 PM
RE: Philco 70 tuning backward? - by morzh - 10-08-2016, 09:29 AM
RE: Philco 70 tuning backward? - by btoher - 10-09-2016, 08:53 PM
RE: Philco 70 tuning backward? - by btoher - 10-08-2016, 10:02 AM
RE: Philco 70 tuning backward? - by morzh - 10-08-2016, 11:24 AM
RE: Philco 70 tuning backward? - by Radioroslyn - 10-08-2016, 11:48 AM
RE: Philco 70 tuning backward? - by sam - 10-08-2016, 12:42 PM
RE: Philco 70 tuning backward? - by btoher - 10-08-2016, 06:46 PM
RE: Philco 70 tuning backward? - by morzh - 10-09-2016, 09:12 PM
RE: Philco 70 tuning backward? - by btoher - 10-09-2016, 11:33 PM
RE: Philco 70 tuning backward? - by Radioroslyn - 10-10-2016, 12:53 AM
RE: Philco 70 tuning backward? - by btoher - 10-14-2016, 09:15 PM
RE: Philco 70 tuning backward? - by btoher - 10-16-2016, 12:24 PM
RE: Philco 70 tuning backward? - by Radioroslyn - 10-16-2016, 03:06 PM
RE: Philco 70 tuning backward? - by btoher - 10-17-2016, 07:34 PM
RE: Philco 70 tuning backward? - by Radioroslyn - 10-17-2016, 07:50 PM
RE: Philco 70 tuning backward? - by Steve Davis - 10-17-2016, 08:25 PM
RE: Philco 70 tuning backward? - by Radioroslyn - 10-17-2016, 09:28 PM
RE: Philco 70 tuning backward? - by btoher - 10-18-2016, 07:38 PM
RE: Philco 70 tuning backward? - by Steve Davis - 10-19-2016, 07:14 PM
RE: Philco 70 tuning backward? - by btoher - 10-23-2016, 04:28 PM



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