"- - Bill - -" exray@coquidotnet wrote in message
...
Tim Wescott wrote:
-- snip --
I was hoping that the symptom (the coils tune the _wrong_ direction with
capacity change) would ring a bell for someone; it looks like I'll
actually
have to dig in and engage my brain on this problem.

Thanks


Could this be a case of low-side versus high-side LO injection?

-Bill


I wish it were, but its in the input circuit -- when the dial (in band 'C')
reads 3MHz the coil tunes at 4.5MHz, as verified both with a grid-dip
oscillator and with a signal generator/scope. At the low end of the range
it's not so bad.