Re: Vacuum tubes

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

Original poster: "Steven Ward by way of Terry Fritz <twftesla-at-qwest-dot-net>" <srward16-at-hotmail-dot-com>

Oh Boy Jonh!

I cant tell you much about that massive tube you have, but just wait till 
next year.  I should have a large 2 x 304TL VTTC, with some expected 20" or 
longer sparks.  The 2x811A coil was giving about 8" at the thon, so they 
really oughta like some 20 inchers!  Geeze, i cant even wait for next year, 
and next time my big coil wont explode!!! LOL!!!  Oh its really a shame.....

Steve Ward.






>From: "Tesla list" <tesla-at-pupman-dot-com>
>To: tesla-at-pupman-dot-com
>Subject: Re: Vacuum tubes
>Date: Sun, 20 Oct 2002 19:10:27 -0600
>
>Original poster: "Ben McMillen by way of Terry Fritz <twftesla-at-qwest-dot-net>" 
><spoonman534-at-yahoo-dot-com>
>
>Hi John,
>   It sounds to me like what you saw may have been a mercury
>arc rectifier.. They were commonly used in power
>equipment..
>
>Coiling In Pittsburgh
>Ben McMillen
>
>--- Tesla list <tesla-at-pupman-dot-com> wrote:
> > Original poster: "John Richardson by way of Terry Fritz
> > <twftesla-at-qwest-dot-net>" <jprich-at-up-dot-net>
> >
> > Hi Guys,
> >
> > Well, Resonance Research's Teslathon was a huge success.
> > Lots of awesome
> > stuff, and a good time for all.
> >
> > I was highly impressed by Steve Wards VTTC, and it's
> > given me the bug to build
> > one.  I'm not all that knowledgeable with electronics,
> > but I have a question
> > that I'm hoping someone can help me with:
> >
> > In an old welding shop one day, and one of the guys was
> > holding the largest
> > tube that I had ever seen.  I seem remember that he said
> > it was out of an old
> > DC welder, or maybe it was from some huge antique battery
> > charger.  Is anyone
> > familiar with one of these, and would it have any
> > practical application in
> > building a VTTC?  It seems that everyone is worried about
> > overdriving their
> > plates, and common sense would dictate that a rectifying
> > tube of this type
> > would be nearly indestructible.  Am I dreaming, or is it
> > possible that this has
> > some relevance?
> >
> > Thanks,
> >
> > John Richardson
> >
> >