I've been hitting a wall with this restoration. I recapped and
completed a full alignment, and while it performs beautifully from
broadcast band to 12 mhz (bands C, D and E ), it is quite deaf on
bands A and B (basically 12-mhz up). I didn't realize it during
alignment because I had been feeding a robust RF generator signal and
it was aligning quite nicely on those upper bands. But once I hooked
up an antenna, I noticed that nothing but the strongest stations come
through on bands A and B, 12 mhz and above. I traced the antenna coil
section very carefully and checked all three sections for open coils,
open bandswitch contacts and cold joints. I can inject an antenna
signal at the bandswitch wafer in the mixer section and the
sensitivity comes back. It seems the signal is getting held up at the
antenna coil section only on bands A and B, but for the life of me, I
can't find the issue, which makes me think I'm missing something. Any
suggestions would be greatly appreciated!