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Re: Will I kill my MOTs?
Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <FutureT-at-aol-dot-com>
In a message dated 5/19/01 5:14:16 PM Eastern Daylight Time, tesla-at-pupman-dot-com
> Hi list!
> I decided to upgrade my coil a bit, and first thing was the power supply.
> intend to use two MOTs back-to-back with center grounded. I rigged them
> with a 16A breaker (at 240v) and it made a nice little spark - I
> knocked one of the wires and it sprang back, drawing the arc to over a
> that scared me! Anywayz, I am running them with no ballast. They don't
> the breaker but am I going to kill them over time by running them like
> I have another, smaller, MOT that I could use as ballast but presumably
> would reduce the power somewhat. Just wondering whether it's absolutely
> necessary to use it.
> Henry Hallam
It's a matter of heat build up. If the MOT's get too hot the insulation
can burn up, and the MOT will be destroyed. Generally, they can
withstand a lot of heat. I've run mine so hot, you'd burn your hand
if you touched the core (power off), yet the wire did not discolour.
Discolouration of the wire is a good indication of too much heat
over time. Smelling or smoking, is another strong indicator :)