Re: NST Life Expectancy

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

Original poster: "WIZZARD . by way of Terry Fritz <teslalist-at-qwest-dot-net>" <pbobyk-at-hotmail-dot-com>

My gaps are not all perfectly even they vary quite a bit.
If I apply the NST output across the gaps, the "widest" tap I should use 
should be the one that had continous arc?

WIZZARD


>From: "Tesla list" <tesla-at-pupman-dot-com>
>To: tesla-at-pupman-dot-com
>Subject: Re: NST Life Expectancy
>Date: Fri, 13 Jun 2003 18:10:43 -0600
>
>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.
>
>Dr. Resonance
>
>Resonance Research Corporation
>E11870 Shadylane Rd.
>Baraboo   WI   53913
>----- Original Message -----
>From: "Tesla list" <tesla-at-pupman-dot-com>
>To: <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>"
><Gary.Lau-at-hp-dot-com>
> >
> > 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>"
> > <pbobyk-at-hotmail-dot-com>
> >
> > 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?
>