[Ron Ramirez]

I've been doing a little research.

The 39-116 and 39-45 have similar front ends to this 39-770 (only three bands instead of four).

The RF coil for AM is the same part number in all three - 32-2379.

The RF coil for 1.7 to 5.6 mc (32-3106) has a different part number in the 39-45 and 39-116 (32-3054), but the band coverage for that band is very similar (1.7 to 5.8 mc in the 39-45 and 39-116; 1.7 to 5.6 in the 39-770).

The primary of 32-3054 has a resistance of 70 ohms...again, much closer than what is in there now.

I'm wondering if it would be worth the trouble to find a band 2 RF coil from a 39-45 or 39-116 and try it in this 770?

Hmmm...

Well, it isn't something that has to be done now. I think I will put the chassis back in the cabinet and set it aside for now. Later on, I can pursue this issue further.

And when the weather gets warmer, I will paint the power transformer!

Oh, by the way, I also fixed the tone control by switching the two outer wires. Now treble is at the top, and bass at the bottom of the thumbwheel, as it should be.