Re: Streamer Behavior vs BPS

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

Original poster: "S & J Young by way of Terry Fritz <twftesla-at-qwest-dot-net>" <youngs-at-konnections-dot-net>

Bart,

My two little 4 inch TCs were spaced about 4 feet apart.  They are two
identical coils with one tank cap across both primaries in series.  ASRG
with 8 rotating electrodes and 2 stationary electrodes, one on each side of
the rotor.  Power is DC reactor resonant charger powered by dual MOTs with
filtered doublers for up to 10 KV DC out.  At full power and 500 BPS, I can
get 57 inch streamers.  At less than 200 BPS, there are several about 18
inch streamers the jump out of the toroids at different locations.  Kindof
worrysome in my cramped basement lab as some of them try to jump to me!
Toroids are el-cheapo 5 inch OD flex drain pipe covered with duct tape then
aluminum tape, about 20 inches total width.  Breakout wires face each other
level with the toroid tops and stick out about an inch.  Sortof like Ed
Wingate's dual TC setup in minature.

John Freau replied to this and caused me to remember that as the BPS gets
lower, the bang energy is going up.  The average current drops and my DC
supply puts out another KV or 2.  This could also account for the increased
"gas burner" effect, as John aptly calls it.  I will have to try the
experiments again keeping the HVDC constant and see if the effect is still
the same.

Bart - thanks for your many valuable contributions over the years to this
list.
--Steve
----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Sunday, December 16, 2001 1:01 PM
Subject: Re: Streamer Behavior vs BPS


> Original poster: "Barton B. Anderson by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <tesla123-at-pacbell-dot-net>
>
> Hi Steve -
>
> This subect is "very" interesting to many of us coilers. There have been
> many discussions regarding
> spark behavier in the past and it's been quite awhile since we've
discussed
> these observations on the
> list. Could you further detail your setup so we have a clearer
> understanding of your setup? I
> personally am interested, as I'm sure many others are. For example, how
> were your toroids set apart
> from each other and how they were driven (includes spark gap method,
power,
> same coil? etc.?).
>
> Thanks a bunch,
> Bart
> --
> Barton B. Anderson
> http://www.classictesla-dot-com
>
>
> Tesla list wrote:
>
> > Original poster: "S & J Young by way of Terry Fritz
<twftesla-at-qwest-dot-net>"
> <youngs-at-konnections-dot-net>
> >
> > Coilers,
> >
> > While making a series of measurements on my twin 4 x 23 TC, I noticed an
> > interesting behavior of the streamers at different BPS.  I use a couple
of
> > wires (breakout points) extending beyond the toroids about an inch to
> > encourage the streamers to stay between the two toroids while doing
> > measurements.  These observations were for breakout wire spacing of 48
> > inches.
> >
> > At BPS of 300 to 500, all streamers stay between the two breakout
points.
> > But at BPS of 200 or less, the streamers branch out in many directions
from
> > each toroid as well as from the breakout wires.  I suppose it has
something
> > to do with the arc channels deionizing more completely between bangs and
> > starting a new random path.  But it is very interesting how the breakout
> > points become less effective at the lower BPS rates.  Comments welcomed.
> >
> > --Steve Young
>
>
>