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Re: OT? DIY Powerstat Wiper Button

Subject: Re: OT? DIY Powerstat Wiper Button
From: Rich Grise
Date: Tue, 09 May 2006 22:49:46 GMT
Newsgroups: sci.electronics.basics
On Tue, 09 May 2006 06:20:35 +0000, Jasen Betts wrote:

> On 2006-05-07, Mark L. Fergerson <mfergerson1@xxxxxxx> wrote:
>>    I got a Powerstat type 10B cheap at a yard sale and discovered later 
>> that the wiper button was missing. I've been advised that whittling a 
>> replacement out of battery carbons, motor brushes, etc. is a Bad Idea.
>>
>>    Finding a proper (i. e. factory) replacement is simply not possible 
>> as They Don't Make 'Em Anymore.
>>
>>    So, any suggestions what to use?
> 
> use the yeller pages, find a place that does motor rewinds, if they don't
> have one they'll have a source, or the ability to manufacture one most
> likely.
> 

I just did a quick google, and some guy says he bought a motor brush and
ground it to size, but that was only a 2.5A variac. Just be sure and
grind the nose down to a flat:


               |   |
                \_/
            ...UUUUU <- windings

So that it exactly covers one winding - they're ground flat on the top,
you know.

Cheers!
Rich


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