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Re: MOT Experiments



Reinhard and all,

As mentioned on the list before, the magnetron is powered by the MOT HV
going through about a .9 to 1 Mfd capacitor, which also provides current
limiting due to its series impedance.

--Steve

----------
> From: Tesla List <tesla-at-pupman-dot-com>
> To: tesla-at-pupman-dot-com
> Subject: MOT Experiments
> Date: Monday, October 26, 1998 11:41 AM
> 
> Original Poster: RWB355-at-aol-dot-com 
> 
> Hi All,
> 
> I read the last emails on MOT experiments with interest. This pretty much
> covers what I said a while ago that MOTīs arenīt really short circuit
current
> limited.
> If you compare the magnetic shunts in a NST to those of a MOT you will
find
> the CSA of the NSTīs shunts is much larger.
> 
> Unlike a neon tube a magnetron is obviously not a complete short. My
guess is
> that is why the current limiting on the MOTs is so rotten. They just
donīt
> need to withstand a full short in normal use.
> 
> NSTs on the other hand must be designed this way, because the U/I curve
of a
> neon tube is positive. This means the more voltage you pump into it, the
more
> current the tube will want to take. If no current limiting where used
either
> the tube or xformer would blow.
> 
> 
> Coiler greets from germany,
> Reinhard
> 
>