Re: gmheicslr --- uh oh...once again!

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

Original poster: "Steven Ward" <srward16-at-hotmail-dot-com> 




>From: "Tesla list" <tesla-at-pupman-dot-com>
>To: tesla-at-pupman-dot-com
>Subject: Re: gmheicslr --- uh oh...once again!
>Date: Mon, 29 Mar 2004 22:23:00 -0700
>
>Original poster: "Jim Mitchell" <electrontube-at-sbcglobal-dot-net>
>
>Yes, I also got good results from the same system.  I was thinking of using
>two HEI coils, mounted in a wood case with two frankenstein looking like
>terminals on top.  That would make quite a nice desk display with a 10" arc
>flying between the points.  It seems when I upped the breakdown voltage,
>the spark didn't get longer,  but brighter (more current).  I couldn't get
>more then 5" out of a single coil with a 1uf 1200v cap bank.
>
>Steve,  did you get those bigger sidacs I mentioned?  I was trying some of
>the smaller ones, and after about 60 shots,  they failed (short circuit).
>
>Regards - Jim Mitchell


Hi Jim,

Yeah i did find my larger sidacs, but the smaller ones never failed and i 
know i used them to at least a thousand pulses now (i ran it at like 10 
pulses a second for awhile and then not to mention 1pps for several amusing 
minutes).  Maybe your cap was larger than 1uf?  or maybe your coils just 
had less inductance (were they high performance coils?).

I guess this is something to beware of, though i havent had a failure yet.

Steve