HV PWR XFORMER-gud idea

[Ian Webb]

I would wonder, however, about DUTY CYCLE?  If you are long-winded as I
am...seem to have a knack for timing out repeaters...are you in danger of
overheating the transformers?

I've never had a microwave apart...ours is pushing 20 years old as I recall and
still works.  Is there direct fan air circulation around the transformer or
just around the tube?

However, an interesting idea!

Ian, K6SDE

VAN LINCOLN wrote:

> Heard a couple hams on 2 meters this morning discussing a really good idea.
> Thought I'd  pass it along on the internet.
>
> One of the hams talking said he found that in OLD MICROWAVE OVEN's, was an
> undiscovered
> resource.  Namely the HV transformer that powers the Magnetron Tube.  He
> has observed that
> most of the transformers have a HV winding of +/- 2000 VAC (single winding)
> @ usually
> about 500 ma. capacity.  AND a 110 VAC primary.   This means that two
> transformers matched of course, and placed in series, will provide 4000 VAC
> centertapped, and 110vac/220vac primarys AT 1/2 an AMP, which is
> more than enough to power that linear amp he wanted to build.  Also, old
> worn out Microwaves can be had
> for free or very cheaply at service dealers, and the local paper want ads.
> FYI from a 'fellow junk collector'
> wd8aam.....this can be copied freely for any use.
>
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