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echo: electronics
to: WAYNE CHIRNSIDE
from: Roy J. Tellason
date: 2003-07-25 04:06:16
subject: power supply

WAYNE CHIRNSIDE wrote in a message to ROY J. TELLASON:

-=> ROY J. TELLASON wrote to ALL <=-

 RJT> So,  anybody out there know much about ferroresonant transformers?

 RJT> I'm just wondering what you can/can't do with the things...

 WC> Darned little just what I recall from my ARRL Handbook.
 WC> They are designed for resonance at line frequency in such a way
 WC> that they are much more tightly voltage regulated
 WC> over rated load and input voltage swings.
 WC> Regards to altering them for different voltages I
 WC> believe you are out of luck as that is precsely what they
 WC> are designed to prevent.

That's about what I figured,  but I haven't yet traced out the wiring in
that thing,  it may be that there are taps I can use.  Or if it's a 4-diode
bridge rectifier I can maybe go to a 2-diode setup if there's a center-tap,
 which would give me 12 volts out instead of 24.

I can think of a few things I can use 24v for,  but they don't amount to
much and sure as heck don't need 10 amps!

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