Dumont RA-109A help needed - very little high voltage

[John Folsom]

Clean the glass at the end of the bell between the yoke and where the metal bell attaches to the glass, this should cure you leakage from the metal bell to the yoke.

Use a piece of plastic hollow flexible tubing like a stethoscope. Stick one end in an ear, and use the other end to listen around in the HV cage to find the location of thee HV sizzle. Of course, often you can see it in a dark room.