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Jamie

Andrew Rossmann wrote:

In article ,
says...

In article ,
says...

It's an HVR-1X diode. This appears, based on some Googling, to be

very

common, and the HVR-1X3 seems to be a common replacement.

That diode is spec'ed at having a large forward voltage drop (10-14
volts). I regular ohm meter will not provide a voltage that high and
will show open.

Is there a simple setup I can create to test it?

I guess I'll answer my own question! I used a 12V UPS battery I had
(12.89V measured) and checked if I could measure voltage through it. The
diode does work and measured about 9.5V.

Any other ideas on what could cause the power surge when the magnetron
is activated? The waveguide is clean. I removed the mica cover over it,
and there was nothing inside.

Doing a forward test on a HV diode does not mean it's good, you still
could have a break down problem with HV entered.

Jamie