If your 240 AC source is wired proper, the green wire is a safety ground. It
should be connected to the chassis or frame of the variac.
73 de Bob - K0RC
----- Original Message -----
From: "Scott Townley" <nx7u@cox.net>
To: <amps@contesting.com>
Sent: Thursday, January 19, 2006 10:55 PM
Subject: [Amps] Silly (use of) variac question
> OK...gonna slowly bring up an old amp that runs on 240VAC only. I have
> 240VAC into the shack and a 240VAC variac (Powerstat model 246). I went
> to hook it up and...I can't figure it out :-(
> The wall socket is 120-0-120 of course, and that's what the amp expects
> too (3-wire black-white-green). How does the ground (green) wire play
> with the variac in line? The only obvious alternative to me is to ignore
> the green wire altogether but that doesn't seem like such a hot idea.
> Suggestions on how to do it right/safely?
> TIA,
> Scott NX7U
> PS Of all the AMPS subjects, I never thought *this* would have hung me up
> :-(
>
> Scott Townley NX7U
> Gilbert, AZ DM43di
>
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