Re: DC VTTC

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

Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <FutureT-at-aol-dot-com>

In a message dated 6/18/02 7:42:32 PM Eastern Daylight Time, tesla-at-pupman-dot-com
writes:


>
> Does anybody have schematics for a DC Vacuum tube tesla coil?  Has anybody 
> made one before?
>

Ryan,    There's two ways to do that.  One way is to simply
rectify the AC first, but that will have basically no effect on
the output, because a typical VTTC is actually a DC coil;
the tube self-rectifies the AC.   Another way is to use a filtered
DC power supply.  THis will give a spark that is much shorter,
but quieter, and the spark will look like a plasma flame, or
a propane torch sort of.  In no cases will the actual output
of the VTTC be DC.  It will always be AC (RF).

John