Re: Variac Faults

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Jonathan Peakall by way of Terry Fritz <twftesla-at-qwest-dot-net>" <jpeakall-at-madlabs.info>

Matthew,

I have scrounged lots of variacs, and the worst thing is usually the brushes
or stuck movement. The only two dead variacs I have found smelled burnt, and
so they should, because they were. I have made brushes from motor brushes,
just sized and arced them to fit. I would avoid spraying variacs with WD-40
or similar to free them up, it can affect insulation and attracts dust.

Jonathan Peakall

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Sunday, December 01, 2002 5:21 PM
Subject: Variac Faults


 > Original poster: "Matthew Smith by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <matt-at-kbc-dot-net.au>
 >
 > Hi All
 >
 > When buying second-hand Variacs, what are the things that are likely to be
 > wrong with them?  I would imagine that brushes may be worn/broken, but has
 > anyone seen one actually burnt out before?
 >
 > I've just bid on a 25A 300V (240V in) beauty and was wondering just how
far
 > to go...
 >
 > Cheers
 >
 > M
 >
 > --
 > Matthew Smith            | Business: http://www.kbc-dot-net.au
 > IT Consultant            | PGP Key:  http://gpg.mss.cx
 > Kadina, South Australia  | * Tivis Project * Community Connect *
 >
 >
 >
 >
 >
 >