In article communications, jeff_wisnia wrote:
mynick wrote:

no shorts between magnetron contacts or ground but when plugged it
does not heat the oven contents and has loud hum
Is it dead(how to make sure) or perhaps requires say 1v higher cathode
heating voltage than what transformer supplies?


Watch out for a big capacitor in there which in some cases can give you
a nasty high voltage bite even after the oven has been unplugged for a
while.


I was checking out an amplifier I built and broke, and sitting for a couple years.
Sure enough, I got a spark messing around with it.

greg