[EdHolland]

Thanks Arran,

I had been running the set with the loop connected.

Today - Big progress. I desoldered the oscillator coil former and looked at the broken "A band" winding, which was open at the ground end common to all 3 coils. I could have tacked it together, but since it was all the way out of the set, and I had 34 AWG wire, I took careful notes (52 turns, and 4.5 turns after the tap) and rewound. The wax was scraped off beforehand and carefully saved, to be melted back on with a heat gun.

With the rewound coil back in the chassis, I found everything working better. AM reception was returned and the presets too. The latter share the A band coil, with their own oscillator preset tuning caps.

Further, the dead spot on the C band is now gone - I think this was caused by the open A band coil resonating while open circuit (when not in use, both ends are grounded), and the absorption killing the oscillator. Of course it could have been the baking I gave the coils with the heat gun.

Either way, I was able to perform a rudimentary alignment on the radio, and establish reception on all bands, so good progress.

I am still concerned that the IF's don't tune well, and have ordered mica caps to replace the ones internal to the transformers.

Anyway - very pleased to keep this one moving in the right direction.

Cheers

Ed