Re: Triggered Gap Safety

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

Original poster: "marc metlicka by way of Terry Fritz <twftesla-at-qwest-dot-net>" <mystuffs-at-orwell-dot-net>

yes, I had a feed back problem at first. To correct it i just reversed
the hot\neutral line connections feeding the system, this took care of
most of it. I now use a small, cheap in line filter (like the ones
installed into pc power input plugs) to eliminate all feedback's.
digikey sells these very cheap.
Marc M.

Tesla list wrote:
> 
> Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<Zimtesla-at-aol-dot-com>
> 
> I tried a triggered gap using the info provided on the website. While it
> produced a spark to bridge the wide main gap and made a lot of nosie, I had
> trouble finding the correct phasing. Looking at the triac output on a
scope it
> seems the coincidence with line peak was within a tenth of the control
rotation
> making it hard to adjust.
> 
> Before I could work this out, a minor electrical catastrophy occurred. The
> triggered gap was feeding high voltage from the ignition coil into the ground
> of my NST and back through the controller to the house mains. Eventually a
> short between the receptical ground and house hot lead occurred with a bright
> arc and tripping of the circuit breaker.
> 
> Just wondering if others had experienced feeding high voltage back through
> ground and to warn that this is something not to be ignored.
> Jim