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Re: Isolation transformer - MOT?
Original poster: "Dale Nassar by way of Terry Fritz <twftesla-at-qwest-dot-net>" <dnassar-at-i-55-dot-com>
You will find that MOT's run HOT even under no load!! I guess they just
weren't designed for cts. use. A powerful cooling fan helps a LOT.
I am not suggesting this, since I haven't tried it, but instead of the
--almost impossible-- task of replacing a secondary with a primary (it's
tough enough just to cut and drill out the secondary), why not use the pair
of transformers with the sec. of transformer 1 connected to the sec. of
transformer 2. This will give an isolation (double) with 120VAC in and
BTW, I have for many years had my oscilloscope connected to the line
through two back-to-back radio shack transformers (25.2 VAC I think) since
I like to scope a lot of line connected devices and direct wave forms.
At 09:38 AM 5/25/02 -0600, you wrote:
>Original poster: "Matthew Smith by way of Terry Fritz
>The joys of living in a small country town! Only two shops sell
>microwave ovens and only one does their own repairs. The result is a
>stream of similar ovens (Panasonic) with *identical* transformers, caps,
>diodes, etc. (Collect enough and you can make a working one.)
>Not the real reason for my post though...
>If I have two identical transformers, what is the feasability of
>removing the secondary from one and replacing with the primary from the
>other? Would this give me a decent 1kVA isolation transformer?
>I rather like the idea of running my bench supply through one with a
>heck of a lot of filtering - stop SSTC signals showing up where they're
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