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Re: Homebrew Variacs? (fwd)





---------- Forwarded message ----------
Date: Wed, 15 Jul 1998 16:26:45 -0600
From: "D.C. Cox" <DR.RESONANCE-at-next-wave-dot-net>
To: Tesla List <tesla-at-pupman-dot-com>
Subject: Re: Homebrew Variacs? (fwd)

to: Stefan

That's the easy part.  You still need the closed iron core with a cross
sectional area large enough to handle your intended circuit current.  The
core must also be laminated to prevent powerful eddy currents.

DR.RESONANCE-at-next-wave-dot-net


----------
> From: Tesla List <tesla-at-pupman-dot-com>
> To: tesla-at-pupman-dot-com
> Subject: Homebrew Variacs? (fwd)
> Date: Tuesday, July 14, 1998 10:17 PM
> 
> 
> 
> ---------- 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