Another RCA CT-100 discovery B8001599

[Penthode]

Originally Posted by old_tv_nut

Wish they did something similar for the CTC-5. That connection is so sensitive to lead length/dress.

Funny you mention the CTC5. A decade ago, when I was using the HP8601a to sweep align my CTC5, the RF alligator clip slipped off and dangling touched the B plus. It blew up the output amplifier of the HP generator. I had used the generator successfully for over a decade and it is a brilliant generator for consumer equipment and was vey saddened by this!

I immediately searched EBay for a replacement part or even generator for parts and found a brilliant and enterprising engineer redesigned the 8601a output amplifier module and offered them for sale. I bought one and the 8601a now has a flatter output response than the original amplifier. Had to be patient on the CTC5 waiting to fix first the HP generator but it was worth it.

I am grateful fortunate that gains do often come after adversity.

The photo below shows the contact spring against stage mixer diode pin.

[Penthode]

Decided to postpone the chassis alignment and bandpass evaluation while I fixed and refinish the cabinet. Peeling veneer relied and front mortised corners were separating. Glued with lot of long clamps all around to pull it back together.

Cabinet was badly banged up. Hoped not to have to do much sanding but had to fix many deep gouges.

Stained to match original finish. Came out very close to the finish removed. Two spray coats of Watco lacquer on the main cabinet to be lightly flattened and polished. Still to do lid and front wood control panel cover.

Seems to be a province wide shortage of lacquer products in Ontario at the moment. Found a hardware store 30 miles away had two litre tins which I collected on the weekend.