RE: 18" sparks at 2KVA, 833a higher voltages

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Cameron B. Prince" <cplists@xxxxxxxxxxxxxxxxx>

Hi Jim,

Yes, I've seen John's site and also his experiments using the PT on the
TCBOR tapes. I hadn't heard of the "pinging" you mentioned before. I've got
an extra 833A I was just going to guinea pig to see just how much they can
take.

Thanks,
Cameron

> -----Original Message-----
> From: Tesla list [mailto:tesla@xxxxxxxxxx]
> Sent: Saturday, February 10, 2007 5:53 PM
> To: tesla@xxxxxxxxxx
> Subject: RE: 18" sparks at 2KVA, 833a higher voltages
>
> Original poster: "Jim Mora" <jmora@xxxxxxxxxxx>
>
> Hi Cameron,
>
> John's site (futuret) has pictures of a (3) 833a VTTC sparking wildly
> powered by a 7500volt Pole pig. Tip: Bert Hickman told me there is a way
> to
> "ping" the tubes with a 10KV adj HV supply to increase their voltage
> tolerance.
>
> Jim Mora
>
> -----Original Message-----
> From: Tesla list [mailto:tesla@xxxxxxxxxx]
> Sent: Friday, February 09, 2007 7:58 PM
> To: tesla@xxxxxxxxxx
> Subject: RE: 18" sparks at 2KVA
>
> Original poster: "Cameron B. Prince" <cplists@xxxxxxxxxxxxxxxxx>
>
> Hi Brett,
>
> Glad to hear about the success with your VTTC. The photos and video clips
> are very impressive, especially for a first run.
>
> If you like the non-staccato mode, I would recommend the 833C. It can
> basically run non-staccato in a VTTC all day long and not even show a hint
> of plate glow. I recently picked up one on eBay and began playing with it.
> It's significantly more robust than the 833A.
>
> I finally got my staccato board repaired earlier this week. That and the
> replacement MOT's (one of mine was toasted due to primary shorting to
> chassis) have my v8 coil back up and running. I hope to get everything
> tuned
> back in and start seeing those 3' arcs again soon.
>
> I also borrowed a 7,200V PT from David Rieben with plans to build another,
> larger VTTC. I hope to try to compare a VTTC driven by a doubler with a
> non-doubled supply. I also want to see what an 833A will really take
> voltage-wise in a VTTC as I may try a doubler on the PT as well.
>
> Keep us posted on your progress.
>
> Thanks,
> Cameron
>
>
>   > -----Original Message-----
>   > From: Tesla list [mailto:tesla@xxxxxxxxxx]
>   > Sent: Thursday, February 08, 2007 10:37 PM
>   > To: tesla@xxxxxxxxxx
>   > 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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