[AMRadio] Panasonic microwave oven parts for radio

John Lyles jtml at losalamos.com
Wed Oct 10 11:16:06 EDT 2007

The light Panasonic ovens that say something like Inverter on the logo are switchers. No heavy transformer anymore. They provide negative polarity hot and operate in a current limit mode, not voltage regulation. There is a website on them, if you search for it, that talks about dissection of one, and the test results. They are pretty neat power supplies, providing like 1/2 amp of DC at >2kV. But very dangerous to play around with, unless you isolate, isolate, isolate. 

If you do decide to pass on the power supply, I would love to have one to play around with sometime. Might eventually be reconfigured to make a nice tube power supply. 


> Date: Tue, 9 Oct 2007 14:08:07 -0500
> From: "Rick Brashear" <rickbras at airmail.net>
> Subject: [AMRadio] Microwave

> This is a tad off topic, but still has roots in radio.  My microwave bit the
> dust and before I haul it out front for the scavengers is there any part of
> it that might be usable in our radio field?  How about the diodes?  I am
> assuming it has some kind of transformer, but it couldn't be much since the
> thing is not heavy at all.  It's a big Panasonic oven, but the insides don't
> look promising.  Any suggestions?

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