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echo: electronics
to: BEN RITCHEY
from: Roy J. Tellason
date: 2003-07-26 04:06:28
subject: power supply

BEN RITCHEY wrote in a message to ROY J. TELLASON:

 BR> * An ongoing debate between Roy J. Tellason and Ben Ritchey rages
 BR> on ... 

 RT: >> So,  anybody out there know much about ferroresonant
 RT: >> transformers? I'm just wondering what you can/can't do with the
 RT: >> things...

 BR>> Not sure what it is actually (?)

 RT: > It's a transformer with a special winding,  to which is conected 
 RT: > an AC capacitor.  They're supposed to be good at regulating?  I 
 RT: > don't know as much as I'd like to about them...

 BR> I wonder if that's the same technology as A/C motors that use
 BR> capacitors and how one would calculate the uF value?

Dunno about the ones used with motors,  this thing is big,  lives in a
metal can,  and has two connections going to the transformer.  Also a
ground lug that's tied to the metal chassis.  I remember reading somewhere
a while back that they are specifically matched to the transformer,  so
there's nothing to calculate.

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