Variac controlled "dimmer" oops

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

Original poster: "Sean Taylor by way of Terry Fritz <twftesla-at-qwest-dot-net>" <taylorss-at-rose-hulman.edu>

OK - so it was late when I wrote this post . . . anywhere you see
variac, replace it with triac.



-------------------
> Original poster: "Sean Taylor by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <taylorss-at-rose-hulman.edu>
> 
> I was wondering if anyone knew about using a variac dimmer for
controlling the
> power to a TC.  I know they chop off a portion of the AC cycle to
limit the
> voltage, but maybe an LC filter could help to get rid of the high
frequency
> component that would probably destroy a transformer, or at least
contribute
> greatly to core losses . . . Anyone have any experience/ideas with
this? It
> would make controlling power a heck of a lot cheaper and lighter
than a variac,
> especially in the several KW range . . .
>  
> Sean Taylor
> 
> 
> 
>