SCR spark gap results are in!

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: eahab el naga <tesla.dude@xxxxxxxxx>

After much debate and experiments, the results of the SCR spark gap
are dissapointing. With the large SCRs that i originally planned to
use, the turn on time was 130us. That was way too slow and the turn
off time being presumably ten times that. Wile the SCR attempts to
turn off several cycles have passed making it impossible to turn...in
turn shorting the powersupply across the primary. Failure....I do not
stop there...i went and bought hyper-SCRs that have a turn on time of
1us and sadly enough the results were the same...with a turn off time
of 10us the scr would only work with coils less than 60khz. I am
greatly dissapointed but i am now working on a single transistor spark
gap replacement. I have a darlington 400A 1000V transistor that is
pretty slow but i only need 120 pulses per second...perhaps easily
accomplishable...Like a good friend always told...its hella hard to
replace them metal switches...

Eahab