RE: [TCML] The Practical construction of VTTCs

["Richard Schmuke" <rdj@xxxxxxxxxxxx>]

The two big pins are the filament, you can check , should be a almost dead
short. Look at the bottom and with the two larger pins toward you, the grid
will be away from you on the right.

Rich , Kd0zz

-----Original Message-----
From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On Behalf
Of Neon Tesla
Sent: Thursday, July 19, 2012 7:37 PM
To: Tesla Coil Mailing List
Subject: Re: [TCML] The Practical construction of VTTCs

       Big question how do I identify the pins for the Cathode Gate and
filament input? (sorry I'm new to this)


On Tue, Jul 17, 2012 at 10:34 AM, Matthew Edwards <
matthew.n.edwards@xxxxxxxxx> wrote:

> I built a similar circuit with 2 811A's (can be found on Steve wards 
> site) with the secondary connections being made within the ends of the 
> secondary itself. I now realize the possible issues of doing this but 
> never had an issue. I suspect that simply placing a divider within 
> your secondary would be more than adequate.
>
> I also just wanted to throw out there the fact that if you use a 
> Staccato controller you can likely increase the life of the tubes
significantly.
>
> BTW, I used a single 1kw MOT and it performed extremely well 
> considering the components being used...
>
> Good luck with the build and enjoy the process!
>
> Matthew Edwards
>
> On Jul 14, 2012, at 9:55 AM, Neon Tesla <neontesla@xxxxxxxxx> wrote:
>
> >            I recently purchased a matched set of 572B tubes for a 3" 
> > VTTC and now I realized that there are not nearly as many pages on 
> > the practical construction of VTTCs so now i'm stuck. I was planing 
> > to use both tubes and parallel two MOTs, then use an oil filled 
> > secondary. I know the basics of a VTTC but I have many questions.
> >
> >            Firstly I wonder if
> > this<
> http://www.instructables.com/files/orig/FO0/K0NC/G3TDVWJB/FO0K0NCG3TDV
> WJB.jpg
> >
> > schematics
> > values would
> > need to be upped to handle two MOTs? Second I was wondering if the 
> > MOTs would need a ballast or rather the tubes would draw the 
> > required current and not pull too much current. Any help is greatly 
> > appreciated,
> >
> >            Thanks!
> >
> >
> > --
> > Don't lower your expectations, raise the voltage !
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--
*Don't lower your expectations, raise the voltage !*
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