[morzh]

...or at least Kirkk claims it is the 65.
He downloaded the sch from the Museum.
Seem to be in some degree of agreement with the chassis.

It has the curtain burner cord, that is.....good! And pliable! But, someone some time connected it wrong moving the nichrome wire in the plug to the opposite prong so in essence the same voltage is being supplied to the both ends of the filament chain. Then it was disconnected from the pin of the 25Z5 it went to (and left hanging within 1mm from it) and a diode was put to cut voltage in half to supply the filaments. I think it will supply a bit more than required and I cannot easily measure it with a DMM; theoretically at 110VAC it should give me 77V RMS which is pretty much what I need (75V), butt the meter shows about 45V DC and 42V AC which will give me about 60V or so when calculated.
I could try to fit a capacitor of 8.5uF (that should provide 312 Ohm of impedance instead of 126 Ohm active resistance, as there is the phase shift of 90 degrees; I have 8.2uF, worked for me in the past on one of these) and this will do it exactly for 120V AC, but the cap is large and will require space.
I decided against using the cord's own resistor: first, it will require major relocation of the wires and second, Kirk is terrified of the curtain burner cords, even though I think the probability of it putting his curtains on fire (heck, just don't use any curtains!) is just a few percent : and  is much less altogether than the one coming from the  rest of his radios and his activities combined which to me is 50/50 : but I will accommodate his wishes, him being a scaredy cat he is.

I tried it with the diodes yesterday; it comes up and buzzes very loudly; on one band (I think it is the BC) it kinda receives the local station but it is weak, garbled and overcome with the buzzing.

I looked into the box with the electrolytic caps; they are not exactly according to the sch; in the sch there are three electrolytics connected to carious points, and in the box two of them are paralleled and there is another one. I wonder if this is the reason for the buzzing. I also think Kirk only buys the radios with some evil spirits lingering in them and they need to be exorcised first, and I do not possess the power to do that. And Kirk has the opposite power of attracting them. Not sure what to do about that.

So, tonight's order of business: try to straighten out the electrolytic capacitors, as the gremlins usually live there for the most part.