My CT-100 lost HV (from losing one B+ line).

[dtvmcdonald]

I found out why the power switch is always on: its jumpered like that.

Removing the jumper, the resistance is a constant 1.4 megohms.

Thus, I need a new switch, which is part of a triple control: volume control,
brightness control, and switch.

These no longer exist ... but I strongly suspect that old RCA volume control+
switch units exist that have a compatible switch. What to do?

(Other than the current dedicated Variac, which admittedly is comforting for
a nice controlled start).