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From: firstname.lastname@example.org (N. Thornton)
Subject: Re: Any good uses for old microwave over parts?
Date: 6 Nov 2002 17:55:40 -0800
NNTP-Posting-Date: 7 Nov 2002 01:55:40 GMT
Al wrote in message news:...
> I disassembled my old microwave oven because the interlock became
> unreliable. Otherwise everything is functional. I can see using the
> keypad controler as darkroom timer You can even use it to generate a
> duty cycle cycler; at 50% power, the output cycles on and off at a 50%
> rate. you can use it to blink some lights and the like.
> But what can be safely done with the microwave tube and supply? I once
> saw a diagram for an amatuer microwave transmitter. I even saw an ad for
> a plasma etcher that used a microwave oven as the exciter.
> Any ideas, even funny ones?
Well, 'safely' is the problem word: I cant imagine doing anything safe
with the magnetron, apart from pulling the nice big magnet out of it
(about as pointles as it gets).
The TF also has its problems, the HT secondary is connected directy to
the core. And if you run the TF continuous you'll soon have a fire or
a blown fuse. You can do plenty if you rewind the TF, but thats no
picnic. The core's welded, theres no insulation on the secondary,
there arent enough turns on the pri to run it continuous....
Zapper TFs look very tempting, but IRL they are difficult to do much
with. I do know you can make a small welder with one, if you rip the
secondary off. The toughened door glass makes a nice chopping board :)
Really everything you can do with them is basically pointless and a
pain. Couldn't you just replace the microswitches?
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