Ups and downs

I tried a heck of a lot of different things today.
I obtained some Silver Mica capacitors for the Neutralization and 12BY7 Feedthrough.

I tried swapping all of the boards from the FT-101F to the FT-101E.  That was not successful.  It turned on, but after about 3 or 4 seconds the receive cut out.  Looks like the noise blanker board and the regulator board are different.  I swapped several boards back and forth to try to get it working.  But at some point, the crystal calibrator stopped working and the receive stopped working on the FT-101E that I was trying. 
I swapped all of the boards back into the FT-101F, and the receive and crystal calibrator were working on it. 
I swapped out the final tubes for a Svetlana set, and turned the heaters on.  I was warming them up to try a transmit test on them, but there still was no idle current.  However, all of the sudden smoke started coming up from the bottom of the radio.  I shut it down and pulled the power.  Looks like a big cloth covered power resistor was smoking, and super hot.
So I'm going to set the FT-101F to the side for now, since it has several problems now.

Back to the FT-101E, I took out my third FT-101E. It was missing regulator board.  I tried the regulator board from the other 101E, and it fired up.  Receive seems excellent, but I must have burned out the crystal calibrator on that board.

More investigations will be necessary :(













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