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I've got a National NC-46 that I'm resurrecting. The alignment is waaay out
of wack, with the top ends of the tuning ranges as much as 25% higher in frequency than they should be. Furthermore, when I increase the trimmer caps on the RF coils the resonant frequency appears to go _up_ instead of down (I even tacked on a fixed capacitance to verify my sanity). I've owned and maintained newer tube radios, and built transistor rigs, so in theory I should know what I'm doing, but this problem has me stumped. Does any of this sound familiar? Are there any factory manuals available for the NC-46 that detail the factory's opinion of the correct alignment procedure? Where can I get one? Thanks in advance. ------------------------------------------- Tim Wescott, KG7LI |
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