Re: Variac Troubles -Oops!

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

Original poster: "Daniel Hess by way of Terry Fritz <twftesla-at-qwest-dot-net>" <dhess1-at-us.ibm-dot-com>


The brushes were just a few dollars. That was years ago. I had to cut off
the braided conductors that came attached. I recall the parts man couldn't
just get me a set of any-old brushes, he had to have a make, model & year.
So I told him '53 Chevy pickup with the 160 cid engine (my Grandfathers old
truck). He looked it up and brought me the brushes.

I only used one of the brushes. The other one is still around, somewhere.

Daniel

"Tesla list" <tesla-at-pupman-dot-com> on 10/03/2002 01:00:57 PM

To:    tesla-at-pupman-dot-com
cc:
Subject:    Re: Variac Troubles -Oops!



Original poster: "Jason by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<jasonp-at-btinternet-dot-com>

Daniel,

> I bought a Variac once that was missing the brush altogether. I went to
my
> local auto parts store and bought a pair of brushes for a generator. (Can
> you believe they still sell these items?) Alternator brushes will
probably
> work but they tend to be smaller so there's less material to work with. A
> little cutting, a little filing and viola! I was back in business.

Good idea - I once tried to use the brush out of an old washing machine
motor (good for 2kVA) but couldnt manage to mount it into the arm on the
variac. How much were the brushes? I would imagine that they would be at
least as expensive as variac brushes, maybee more, seeing as most
alternators are rated at >60A!!

Best Regards,

Jason
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