Doug,

In answer to your question: Yes, I've seen the capacitor go bad
instantaneously and will clearly show as shorted in both directions when
measured out of circuit using a DVM. (I am assuming your 2 ohms is out of
circuit.)

Also check the magnetron resistance and the zener diode bias voltage as
well. The only other thing that regularly fails in most microwaves are the
door safety microswitches. Good luck and be very careful with the lethal
voltages and current generated by the unit.

Bob

"Doug Warner" wrote in message
...

Checked cap for charge (dead), metered it,. 2 ohms!..
As a final test, I connected it in series with my bench supply and a
#1157 automotive bulb, and it lights.. (it really is shorted.)

Has anyone seen this failure mode before? In my past experience, caps
generally fail slowly.


BTW: The HV diode is good, I connected my supply across it with the
curent limit set to a few mA, and ti conducts at about 7V.

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