RE: [TCML] Still stuck at 36"

["Jim Mora" <wavetuner@xxxxxxxxx>]

Hi Neal,

That's very odd and must be design related. NST's love blown gaps to 2KW
max.

Jim Mora

-----Original Message-----
From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On Behalf
Of neal@xxxxxxxxxxxxxxxx
Sent: Monday, January 26, 2009 3:58 AM
To: Tesla Coil Mailing List
Subject: RE: [TCML] Still stuck at 36"

Just thought I'd throw in my 2 cents worth, since I just tried this-
Someone earlier mentioned that a single gap might be better than an RQ type,
but
that was not the case for me. I'm using the blower from an air hockey table
for
quenching. I temporarily replaced my multi-gap with a single gap, fixed in a
large pvc reducer fitting (I think 3" to 1 1/2") and directed as much air as
possible over the gap. Cranking it up to about 60% power, within seconds I
watched the streamers get reduced to almost nothing. Shut it off, let it
cool
down, and the same thing happened. So, for myself, I'll stick with the RQ
style.

Neal.


Quoting "Lau, Gary" <Gary.Lau@xxxxxx>:

> I can't back any of this up with experimental evidence, but I would guess
> that a pressurized gap would exhibit worse quenching than a sucker gap.  I
> base this on experiments that Terry did years ago, comparing a single
segment
> gap to a multi-segment gap.  The multi-segment gap showed superior
quenching,
> but higher losses.
>
> I suspect that things that stretch out or cool the gap plasma, like
keeping
> it in contact with as much and as many pieces of metal as possible, tend
to
> enhance quenching - the extinguishing of the arc.  I'm guessing that the
> shorter, more conductive arc in a pressurized gap would be more difficult
to
> extinguish than one stretched out further.
>
> Regards, Gary Lau
> MA, USA
>


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