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RE: Terry Filter Gap Setting
Original poster: "Lau, Gary" <gary.lau-at-hp-dot-com>
I assume that you're setting the gap width with only the NST applied?
Safety gaps should fire only very infrequently, so there's no need to
use tungsten. 7/16" is far too wide; I suspect you need it so wide
because the tips of the rods have sharp edges, which generate corona and
reduce their breakdown voltage. I suggest you use copper or brass
electrodes that have a large radius of curvature - carriage bolt heads
or brass balls (try the lamp dept at Home Depot).
Regards, Gary Lau
MA, USA
Original poster: "Harold Weiss" <hweiss-at-new.rr-dot-com>
Hi All,
I am about to start sparking again. I just started adjusting my new
Terry
filter safety gaps. My question is weather approximatly 7/16" per side
sounds correct for a 12/120 system with 1/8" 2% thoriated tungsten rods
on
the safetygap. That is about where the gaps fire once and extinguish
when
I first power the NSTs. Or should I open them a tad more to stop firing
completely?
David E Weiss