[EdHolland]

Thanks Rod,

I've got the oscillator section working fine, it tracks +460 kHz all the way up and down relative to the dial, which is spot on the WWV frequencies, and receives a generator signal perfectly. The problem (if there is one) is the antenna side of things on the other coil set. One thing that I think might be a clue is that the trimmers for the antenna circuits don't seem to do much - the high frequency band C in particular, the trimmer has to be all the way loose, otherwise sensitivity is squashed.

More on this tomorrow...it is a head-scratcher.