Re: Variac Wiring

• To: "'Tesla List'" <tesla-at-poodle.pupman-dot-com>
• Subject: Re: Variac Wiring
• From: Tesla List <tesla-at-stic-dot-net>
• Date: Sun, 7 Dec 1997 23:00:23 -0600
• Approved: tesla-at-stic-dot-net

From: 	Adam[SMTP:absmith-at-tiac-dot-net]
Sent: 	Sunday, December 07, 1997 7:57 PM
To: 	tesla list
Subject: 	Variac Wiring


I had to take apart my variac (Powerstat 116, 120V 7.5A 1PH) today to 
replace the switch, and when I removed the housing, I found two 
unconnected terminals numbered 4 & 5.  The schematics seem to be like 
this:

      ____ 1
     (
5 ___(
     (
     (
     (<--- 3
     (
     (
     (
2 ___(
     (
     (____ 4

The variac was originally connected to the mains at 1 & 2, and to the 
outputs with 1 & 3. This gives a maximum of 140V.  If I connect the mains 
to 2 & 5 and the outputs to 1 & 4 I get about 170V.  Any reason for these 
extra bits of winding?

-Adam

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Adam Smith
absmith-at-tiac-dot-net
Epoch, Inc. Digital Music Project

www.tiac-dot-net/users/absmith/                 MP3 Demo Tracks Now Available!
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