"Jim Yanik" . wrote in message
.. .
| "NSM" wrote in news:XpNtd.5335$Ya4.1531@edtnps84:
....
| Mine has a big ass inverter transformer wound with what looks like
| 1/4" thick Litz wire (multiple strands to prevent surface effects).

| "inverters" take rectified and filtered line AC(DC) and chop it at high
| frequencies (multiple KHz,maybe 25-50 KHz) thru a non-iron(ferrite) core
| transformer,then rectify and use for the magnetron supply.This requires a
| inverter control PCB.
|
| Ordinary iron core,low freq transformers run on 50/60 hz line AC.and weigh
| a lot more than an inverter transformer.

Yes? What's your point? This Panasonic has the biggest ferrite inverter core
I've seen.

N