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Hi Chris, The humming sound means that the MOT was pulling excessive current. The capacitor was originally shorted, and so is the HV rectifier (now)... :^) BTW, remember not to look at the magnetron with your remaining good eye. -- Bert --
: I have finished making my microwave cannon from a broken microwave (
: know, i know, don't play with that!) I had everything plugged in except
: for the magnatron. I plugged it in the transformer was humming quietly
: and then boom. The darn diode on the HV cap split in 2 pieces. Any
: ides ? My MW Cannon was constructed using the microwaves wiring
: schematic and only consisted of the MOT, HV cap with HV diode, and the
: magnatron. Setup is pretty straight forward. I just don't see hwo the
: diode blew and the cap was connected to any load (magnatron was
: disconnected just to test fan and lights)
: As i mentiond the parts were taken from a broken microwave. The
: microwave would turn on, but as soon as you entered a time and press
: start, the microwave would humm very loudly and nothing inside would get
: hot. This thing was from 1984 (litterally, an old Tappan) So i decided,
: time to have fun with it!
: So i am assuming that the problem was a faulty capacitor. I did a
: few test with the trusty voltmeter and i know the transformer is working
: (mental note = get a voltmeter that can handle high voltages, poor
: thing)
: Thanks for any input guys. I know this is a tesla message board and
: i apologize, but i couldn't find any other place to post and i noticed a
: few of you are using MOT for your coils.
:
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