Sounds like a good plan Frank. I'll give it a shot this weekend. Thanks
for the link.
Charlie
On Fri, Nov 21, 2008 at 2:28 PM, Frank van Lindert <Frank@xxxxxxxxxxxxx>wrote:
> In that case, like Ian pointed out, the rheostat resistance to be
> expected is very low. And hence difficult to measure...
>
> But if your rheostat (like mine) is almost a copy of the one in
> Wikipedia, then perhaps yours will have its value printed on the front
> too, like mine has.
>
> You will only know for certain when you remove the adjusting knob
> (usually one or two small screws which fasten it to the axis of the
> rheostat) and then unscrew the one nut on that axis keeping the
> rheostat in place. Very straightforward, and you can probably do it
> without desoldering the wires. Knowing is better than guessing ;-)
>
> And then you can go here
> http://www.surplussales.com/potentiometers/rheostats/PotsRheost-1.html
> or one of the many other place where you find high power
> potentiometers.
>
> Good luck, Frank.
>
>
>
> Fri, 21 Nov 2008 11:58:36 -0500, "Charles Geilfuss"
> <charles.geilfuss@xxxxxxxxx> wrote:
>
> >Frank,
> > The one in the Wiki photo is *very* similar to the one in my scope. I
> >tested mine still wired in place. The line current goes through a box that
> >allows adjustment for different wall voltage (220/110) then through what
> >looks to be a transformer, then to the rheostat which is in series with
> the
> >bulb.
> >
> >Charlie
> >
> --
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