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Re: 10K 100 watt Rheostat
Tesla List wrote:
>
> Original Poster: Brandywine <brandywine-at-writeme-dot-com>
>
> Guys,
> My search for tube coil parts continues. I'm appreciative of the many
> responses offering capacitor suggestions. I hope part searching is a
> proper use of the list.
> As the subject suggests, I'm looking for a 10K, 100 watt rheostat or
> variable resistor. But again, we run into the availability problem.
> Most new rheostats seem to run about $25.00 for a 50 watt unit. I'm
> prepared to pay that amount, but you guys understand the desire to
> economize.
> The question comes down to what is available on the used/surplus
> market. For example, I could use a 5K fixed + 5K rheostat (or variable).
> Sufficient adjustment may be provided by using 9 series connected fixed
> + 1 variable 1K unit. All should be at least 100 watts. There are many
> usable variations.
> Source suggestions?
> At least I was able to obtain 4-- 833As at a reasonable price:
> Nothing. I know a guy at a radio station. The tubes were pulled from
> their transmitter. They won't produce full power, of course; but they
> are not pulled when they're shot, so they should still be useable. A
> rewound MOT will provide the filament voltage. I already have high
> voltage xfmrs, raw materials for primaries and secondaries, etc. The
> caps and resistors are the sticking point.
> Finally, I should publicly thank John Freau for his considerable help
> with this project.
> Dave Hartwick
>
> Dave Hartwick
Dave,
I have a few power rheostats for sale. They are 50W, little-used, with
dial plate & knob, $8 each. Available values are 500, 800, 1K, 2.5K,
3.5K ohms. If interested, contact me directly at teddp-at-earthlink-dot-net
Thanks,
Tedd
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My FOR-SALE list is at: http://home.earthlink-dot-net/~teddp
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