Re: Gap spacing with LTR cap

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

Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <FutureT-at-aol-dot-com>


My understanding is that, with an LTR cap, opening up the gap to fire beyond 
the peak output voltage of the NST will only stop the spark gap firing, 
without damaging the NSTs.  However, if you did the same with a resonant 
cap, the gap would keep firing beyond the NST output voltage, until the 
insulation on one or both of the NST secondaries eventually failed from 
overvoltage.

Am I on the right track here?

Stacy Gillett




Yes, but often it's the tar that breaks down in the NST, if your
NST has tar.  Also, widening the gap more than it is now,
will stress the NST more whether you use reso, or LTR mode.
The key with LTR mode is that you can get more power throughput
with a narrow gap.

Cheers,
John