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Re: And another one bits the dust
In a message dated 99-05-26 01:16:57 EDT, you write:
<< Original Poster: "Vivian Watts" <V.C.Watts-at-btinternet-dot-com>
> Hi All,
> Having just posted my results with new cap, Neon's and sync gap I've
> just blown another Neon. Nothing dramatic just suddenly less output. Seems
> one Neon has gone output short. So to answer my own question, two 5Kv Neons
> require closer safety gaps than 1/4" to ground and 1/2" across the two - if
> they are rounded :-(
> So chaps it looks like I won't be bringing mine to the UK Teslathon.
> regards
> Viv Watts UK.
> >>
Viv,
Sorry to hear about the NST. For my 12kV, 30ma NST, I never used
more than a 7/16" safety gap on each side of the NST, using a loop
of #10 wire for the safety gap. I can decrease my spacing to just
about 1/4" on each side before it fires, using the slightly larger than
resonant cap. Are your NST's new or used? But for the longest time
I didn't even bother using any safety gaps, or any NST protection
methods, and still never had any problems. But I never ran the NST's
for longer than 1 minute at a time or so. I think the long runs kills
them. Maybe yours are a wimpy brand, if you don't mind me saying?
John Freau