RE: Stacking Variacs - shaft material

To: tesla-at-pupman-dot-com
Subject: RE: Stacking Variacs - shaft material
From: "Basura, Brian" <brian.basura-at-unistudios-dot-com> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
Date: Thu, 10 Feb 2000 18:22:25 -0700
Approved: twftesla-at-uswest-dot-net
Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

Steel shafts are fine. They are used by manufactures in their big Variac
stacks. Check out
http://fp2.hughes-dot-net/brianb/pictures/tesla/controller4.JPG It used three
steel shafts connected with chain and sprockets.

Regards,
Brian Basura

-----Original Message-----
From: Tesla List [mailto:tesla-at-pupman-dot-com]
Sent: Wednesday, February 09, 2000 6:12 AM
To: tesla-at-pupman-dot-com
Subject: Re: Stacking Variacs - shaft material

Original Poster: Bunnykiller <bigfoo39-at-idt-dot-net> 

Tesla List wrote:
> 
> Original Poster: Eric Leighton <ELeighton-at-portdiscovery-dot-org>
> 
> I want to stack the two 10A variacs I have, and want to know what material
> the shared shaft has to be.  The original shaft is 3/8" aluminum, and I
have
> some 3/8" stainless tubing that I think will work, as long as it doesn't
> have to be aluminum.  I figured that plain old (magnetic) steel might not
be
> so good for a shaft that goes through the core, no?
> 
> I'll ask about the choke I'll need for ganging these later, after I've
> reviewed what I found in the archives.
> 
> Eric Forsman
> Baltimore

Hi Eric ...

stainless shaft is ok   if you are worried about magnetic effects  316SS
is nonmagnetic ( actually really low magnetic)    see if a magnet sticks
to your shaft   if it does   most hardwares and home depots carry
aluminum shaft material...

Scot D