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Re: NST Life Expectancy
Original poster: "Dr. Resonance by way of Terry Fritz <teslalist-at-qwest-dot-net>" <resonance-at-jvlnet-dot-com>
If running with an NST keep your total (sum of all small gaps) to a value in
the range of 0.180 to 0.220 and your NST's will not fail with a good filter.
If you open them "all the way up" you will be hitting 2.2 * Erms which is
quickly fatal to a NST.
Resonance Research Corporation
E11870 Shadylane Rd.
Baraboo WI 53913
----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
Sent: Friday, June 13, 2003 12:03 PM
Subject: RE: NST Life Expectancy
> Original poster: "Lau, Gary by way of Terry Fritz <teslalist-at-qwest-dot-net>"
> A properly constructed "Terry filter" includes safety gaps that have been
> adjusted to fire just over the NST's open-circuit voltage, and a string of
> MOV's. Did your filter have these elements?
> Your statement that "my new RQ gaps were opened full.." would seem to
> indicate the cause of the problem. Safety gaps and MOV's are like speed
> limit signs and speed traps, and opening the gaps is like putting the gas
> pedal to the floor. Live fast, die young.
> The water condensation may be a by-product of the fire resulting from your
> NST's internal arcing, or it may be a remnant of a harsh pre-coiling life
> in an outdoor sign, difficult to say now. If the latter, this may have
> been a factor in the unit's early demise.
> Gary Lau
> MA, USA
> Original poster: "WIZZARD . by way of Terry Fritz <teslalist-at-qwest-dot-net>"
> My 4" coil and had one of the NST's die.
> I suspect my protection circuit was the cause.
> I made a Terry filter and put it on my remaining NST.
> I believe the second transformer has now failed.
> I'm new to this game but I think a transformer should last more than a
> couple minutes of operation.
> What is the normal life expectancy of an NST?