Steve Kraus wrote:
...shuts off after 3 seconds. I understand it automatically does this if
it detects that it's not working. So if it's not the door safety switches
which seems to be a common point of failure on these, it's got to be either
the magnetron or the inverter. Anyway to tell which? I doubt either is
worth bothering with but I'd still be curious.

Should get some radiated pulses from the coils at some distance on scope,
if it's making hv. Cover off. I've seen schematic somewhere on web.

Don't mess around if you don't know what your doing.

Greg