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RE: Homebrew Variacs? (fwd)





---------- Forwarded message ----------
Date: Tue, 14 Jul 1998 22:41:09 -0700
From: Bill Noble <william_b_noble-at-email.msn-dot-com>
To: 'Tesla List' <tesla-at-pupman-dot-com>
Subject: RE: Homebrew Variacs? (fwd)

aaah, no, that won't work.  at 60 hz you need an iron core.  10AWG will
carry quite a bit of current - about 50 amps if I remember right (steady
state).  you would be better off gettting a cheap commercial transormer and
modifying it - or find a used variac

-----Original Message-----
From: Tesla List [mailto:tesla-at-pupman-dot-com]
Sent: Tuesday, July 14, 1998 9:18 PM
To: tesla-at-pupman-dot-com
Subject: Homebrew Variacs? (fwd)




---------- Forwarded message ----------
Date: Tue, 14 Jul 1998 18:53:56 -0700
From: Stefan Bishay <stefan00-at-gte-dot-net>
To: tesla-at-pupman-dot-com
Subject: Homebrew Variacs?

Is it possible? I was thinking take a piece of 12" thickwall PVC pipe,
about 6" long, wrap #10 enamel coated wire around it in the standard variac
fashion, and  machine up some kind of rotor/brush assembly. Would this
work? Any special considerations? What kind of current will 10 AWG wire
handle at 240v in that application?


Stefan Bishay - KC7SJC
Seattle, WA
ICQ 2141646