Here we go.
I was for some years, an Appliance Serviceman, repairing things like M/Wave ovens.
This was a required part of my Electricians Apprenticeship.
Now,
A microwave oven uses a high current and frequency to cook food.
It uses 2.4Ghz as a standard frequency.
The biggest thing to look out for in a microwave oven is not the Magnetron, but the Capacitor that drives the HV side of the magnetron.
Only 2uF, but these capacitors can store up to 1500V, I am not making this up.
If one of these capacitors becomes a dead short, it can have real ramifications for the connected supply.
Not only will it blow a fuse, but it will make a nasty mess of molten copper.
That is why M/Wave ovens are required to be protected by ceramic fuses, not glass type fuses.
