Re: [TCML] Variac

["DC Cox" <resonance@xxxxxxxxxxxx>]

The usual connection is 120 vac input on #1 and #4, with output on #1
(common) and #3 (the adjustable wiper).  If unsure, Superior has tech prints
on their website.

It's used to slowly bring up the voltage on the nst thus placing less stress
on the MMC caps if you happen to hit the power switch at the sine wave
peak.  Many experimenters do not use them at all and have good results.

Dr. Resonance




On Tue, Jun 24, 2008 at 5:12 PM, stamsund <stamsund@xxxxxxxxxxxxxx> wrote:

> I found a variable transformer among my shop goodies.  It's a Superior
> Electric Powerstat, Model Q116U, 120 volt primary, 0-140 volts out, 1.3 KVA,
> 9 Amps.  I understand it should be used between AC power and the NST, but
> I'm not really sure why it's needed and/or recommended and exactly how to
> connect it.
>
> Rob Robertsen, KA7YAK
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