Re: MOT success

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: Jim Lux <jimlux-at-earthlink-dot-net> 

At 04:06 PM 1/30/2004 -0700, you wrote:
>Original poster: Esondrmn-at-aol-dot-com
>In a message dated 1/30/04 11:13:57 AM Pacific Standard Time, 
>tesla-at-pupman-dot-com writes:
>
>
>>Original poster: "Aaron Aab" <striker754-at-earthlink-dot-net>
>>
>>Garbage In = Garbage out right?
>>
>>34 kVA in = close to 34 kVA out right? some will be lost in heat and sound,
>>but the output should be close to 34kVa?
>>
>>8kV at 4.25A? Yum. How can I measure the output, put it through a stepdown
>>tranny I am assuming?
>>
>>Aaron
>
>
>Aaron,
>
>I was under the impression that the average MOT put out 2 kv at about 500 
>ma.  So, your stack would be about 8 kv at 500 ma or 4 kva total.  Maybe 
>someone who has built one can help here.  Do they need ballast in the 
>primary or not?  Maybe without ballast they act like a distribution 
>transformer and just keep putting out current until something melts?
>
>Ed Sonderman

I think they are "lightly ballasted".. that is, they have some leakage 
flux, but not enough to limit the current in a "dead short" situation.  You 
wouldn't want too much impedance in the microwave application, because it 
would make the voltage sag too much as the tube filament warmed up and 
started to conduct.  Probably enough impedance to keep from killing the 
diodes, etc.