Pilot Model T-601 FM "Pilotuner" trimmer cap value - Printable Version

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+--- Thread: Pilot Model T-601 FM "Pilotuner" trimmer cap value (/showthread.php?tid=3834)

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Pilot Model T-601 FM "Pilotuner" trimmer cap value - FXpert - 10-14-2011

Just recapped a pilotuner T-601 FM I picked up at a flea market. Cannot aline. All the stations seem to jammed into the lower part of the dial. Upper part of the dial is dead. I receive only 96 - 108 MC and they appear on lower part of the dial. Seems trimmer cap T7 is open. here is the schematic:
http://www.nostalgiaair.org/PagesByModel/587/M0014587.pdf
but I can't find a parts list for value of T7.
If someone knows where to get this info I would be greatly appreciative.
Thanks

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Re: Pilot Model T-601 FM "Pilotuner" trimmer cap value - Radioroslyn - 10-14-2011

Because of the frequency involved it's going to be pretty small something like 10mmfd. If the osc coil is air wound you can try pulling the turns apart a bit or pinching it together to raise or low the inductance.
Terry

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Re: Pilot Model T-601 FM "Pilotuner" trimmer cap value - FXpert - 10-14-2011

Yes completely removing the slug and squeezing the coils together helped but not enough. Thanks for the info. Found a 5- 20 PF cap gonna try that when it arrives.
Thanks all!

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Re: Pilot Model T-601 FM "Pilotuner" trimmer cap value - Arran - 10-19-2011

Did you check the resistors in the circuit and the fixed micas as well? Recapping a set fixes a lot of problems but paper caps aren't the only part that fails. It's rare to have a problem with a trimmer cap unless someone physically mangled the thing. They probably don't list a value for the trimmer for that reason, they just don't go bad on their own.
Regards
Arran

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