Re: spark gap question...

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

Original poster: "Jason Petrou by way of Terry Fritz <twftesla-at-qwest-dot-net>" <jasonp-at-btinternet-dot-com>

Hi there

Just an extra addition to your MOT supply... have you considered using a
triggered gap? They can be very useful where oyu find that the gap fails to
self arc... there is a diagram for one here:
http://www.geocities-dot-com/teslamanuk/public_html/temp/capexp.jpg and it uses
an ignition coil... try it and see!

Regards,
Jason
----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Thursday, June 28, 2001 12:25 AM
Subject: Re: spark gap question...


> Original poster: "Jason Petrou by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<jasonp-at-btinternet-dot-com>
>
> Hi there
>
> Sounds icky.. obviously there is current flowing, because you can
> successfully fry resistors.. lessee... 4000/33 100A, i.e. 330KW - yes that
> would fry a resistor. The problem is in the primary circuit - sounds lie
you
> are either using a dead cap bank, or a vary high resistance circuit, which
> a TC circuit is definitely not. I would replace your caps - that is
proably
> the main problem!!
>
> Good luck
> Jason
> ----- Original Message -----
> From: "Tesla list" <tesla-at-pupman-dot-com>
> To: <tesla-at-pupman-dot-com>
> Sent: Wednesday, June 27, 2001 2:33 PM
> Subject: spark gap question...
>
>
> > Original poster: "brentonps by way of Terry Fritz <twftesla-at-qwest-dot-net>"
> <brentonps-at-optuset-dot-com.au.pupman-dot-com>
> >
> >     The other night i finally got round to putting together some pieces
> for a
> > relatively small TC however, i was unable to get the electricity to
bridge
> the
> > spark gap no matter how close the wires where (well, within a couple of
mm
> at
> > least). At first i thought that my transformer was shot or something had
> > shorted so
> > i placed a 33ohm resistor across the spark gap and turned it on. The
> > resistor ended
> > it's life in a blaze of glory and i saw a bright flash. So, i had
> considerable
> > power but the initial spark wasen't happening. I know that my line
> transformer
> > (MOT) is giving out more than 3kv as my 3kv capacitors sorta..um...blew
up
> > (now i
> > have a large black mark on the side of my casing).
> >     Does anyone have any ideas as to why the gap wasn't being briged? It
> > was a very
> > dry night so i don't know if that would affect it at all.
> >     After a while i did another resistor but left the power on for
> > 20-30secs or so
> > and a very large blue arc formed across my 2cm gap. I estimate my power
> > output to
> > be 4kv at about 500ma. My input to the MOT is 240v at about 11A. I have
a
> > overload
> > protector that trips after about 10-20secs of usage.
> >
> >
> >
>
>
>