[lasurveyor]

c-201 is open replace it. Check for -11vdc on grid of 6SQ7 and a good gnd connection on pin 3. If this doesn't lower your plate voltage try another 6SQ7.

There is -1 volt on the grid and the cathode has a good ground.

The tube being used is a 7B6 and seems to be a Philco swap. The pin assignments are different and the solder connections seem original.

C-201 is a new cap and checks at 0.01 mfd, but I can go ahead and swap it out. I have other 7B6's that I can try.

Thank you so much for your time!
Alan