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Re: Ballast



Original poster: "R Heidlebaugh by way of Terry Fritz <twftesla-at-qwest-dot-net>" <rheidlebaugh-at-zialink-dot-com>

on 11/05/01 4:29 PM, Tesla list at tesla-at-pupman-dot-com wrote:

> Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <A123X-at-aol-dot-com>
> 
> I'm planning to make a gapped core ballast with an MOT core. I'm looking to
> get
> around 16amps, or 8amps if I use my variac to take the voltage to 240v.
> Anyway,
> can I just use the original primary as the winding for the ballast? Also I
> don't have anything to measure the current with. Will radioshack have good
> enough meters? 
> 
> Mark
> 
> 
If you measure the voltage across a known resistor you have the current
equiv. I like to use a 1 ohm or a o.1 ohm resistor so I dont nead to think
about conversion. If you use less than 0.1 ohm you nead good meters and
calibrated standards. 100v across one ohm is 100 amp
    Robert H