Re: 18" sparks at 2KVA

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "David Rieben" <drieben@xxxxxxxxxxxxxxx>

Hi Brett,

Congrats on the success of your VTTC ;^) Seeing Cameron Prince's
VTTC and its AWESOME performance firsthand made me HAVE
to build one myself. As a matter of fact, Cameron built my stacatto
controller for me, as tiny circuitry is something that I don't do to well.
I built everything else and based mine on Cameron's, which was ori-
ginally based on Steve Ward's MOT powered 833A VTTC. I have
not gotten around to posting pics of my VTTC to my Green Monster
website yet and I need to get it on there, too.

Once you go stacatto, you should be able to push >30" sparks and
yet keep the grid of your tube dimmer than running in continuous mode.

Nice work,
David Rieben


----- Original Message -----
From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Thursday, February 08, 2007 10:37 PM
Subject: 18" sparks at 2KVA


> Original poster: Brett Miller <brmtesla2@xxxxxxxxx>
>
> Tube Coilers...
>
> As of today (February 8, 07) I am getting consistant
> 18" sparks (a little longer to a grounded target) with
> 2kva input to the plate transformer.
>
> Specs are the same, but I have moved the feedback coil
> back up to the top of the former (a la Cameron
> Prince's vttc).  This has seemed to result in a
> decrease in wallplug input on two seperate occations.
> The plate is still running a medium orange, which
> turns to bright orange as the voltage approaches 140
> on the variac.
>
> My latest run (a couple minutes ago) resulted in 18"
> sparks with 16a 130v input for 2080va fluctuating at
> times to 17A -- 2210va.
>
> ---
>
> I was wanting to hold out on running the coil until I
> got the staccato board together, but I can't do it.  I
> love the look and sound of the 60hz doubler operation.
>   For anyone in doubt, building a vttc is definately
> worth it, aesthetically it is a completely different
> animal than a disruptive coil.  And if you are a
> self-taught amateur like myself, you will learn quite
> a bit in the endeavor.
>
> -Brett
>
>
>
>
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