RE: SRSG or ARSG

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

Original poster: "Luke" <Bluu-at-cox-dot-net> 

I think this is starting to soak in ill have to roll it around in my
head for a while.

And I knew that staic was not the same as slow but it was the extreme
which got people geared up to respond to me with reasons rather than
rules of thumb.  I like both by the way.  But the why is very important
to me even if I cant master it.

Thanx again I have been enlightened.

Luke Galyan
Bluu-at-cox-dot-net

-----Original Message-----
From: Tesla list [mailto:tesla-at-pupman-dot-com]
Sent: Thursday, January 15, 2004 10:36 AM
To: tesla-at-pupman-dot-com
Subject: Re: SRSG or ARSG

Original poster: Finn Hammer <f-h-at-c.dk>

Luke,

The ultimate in slow!, that`s a good one!, and it would seem so, but not
quite.

One property of the static gap is, that there is a fixed distance from
the
electrodes at any time, so the firing voltage will be relatively
constant.
(Things like electrode shape, and temperature in particular, can change
this, but in that case the tendency is towards lower breakdown voltage,
which is safe for the cap/transformer combo).
The breakrate is then a combination of the transformers ablity to
deliver
current, and the size of the cap. Small caps charge up fast, even so
with
beefier transformers, so the static gap can be quite fast = high
breakrates
if the gap is spaced narrow, the cap small and the transformer beefy.

A very important feature of the rotary gap is that the electrodes are
spaced far apart, except at the moment when a discharge is desired.

However, if the rotary is not adjusted correctly, so that the electrodes

are not in alignment when the voltage starts climbing, the voltage on
the
cap can shoot to damagingly high values, and ruin the cap/transformer.
This
is the reason why a safety gap is needed.

Cheers, Finn Hammer
Tesla list wrote:

 >Original poster: "Luke" <Bluu-at-cox-dot-net>
 >Why does running an ARSG too slow build up too much voltage on the
 >capacitor?  A static gap is the ultimate in slow and people use them
all
 >the time.
 >Luke Galyan
 >Bluu-at-cox-dot-net
 >-----Original Message-----
 >From: Tesla list [mailto:tesla-at-pupman-dot-com]
 >Sent: Wednesday, January 14, 2004 3:25 PM
 >To: tesla-at-pupman-dot-com
 >Subject: Re: SRSG or ARSG
 >Original poster: FutureT-at-aol-dot-com
 >In a message dated 1/13/04 9:36:40 PM Eastern Standard Time,
 >tesla-at-pupman-dot-com writes:
 >
 >  >May ask why exactly an ASRG is bad for an NST?
 >
 >ASRG can be used, but must not be run to slow or the
 >voltage may go to high for the NST if a suitable safety gap
 >and protective filter is not used.  However the spark lengths
 >will probably be poor.  A small value cap must be used, which
 >will not permit the NST to deliver much power.  Many folks
 >run the ASRG slow at times without adequate protection
 >and destory the NST.  Only 120 bps sync will give the
 >ultimate in spark length performance with NSTs it seems.
 >John