Re: Low-voltage NST

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

Original poster: "Luc by way of Terry Fritz <twftesla-at-qwest-dot-net>" <ludev-at-videotron.ca>

Hi Antonio

Is the NST is in a casing with tar or bare? If it's bare; is the
secondary is form by one coil or two? I presume you test with an
ohmmeter if a connection exist between the hv coil and the core.

Any way if the nst have only one hv coil it probably could be
ground. I have a small nst like that and the hv coil is ground to
the core.

Cheers,

Luc Benard   

Tesla list wrote:
> 
> Original poster: "Antonio Carlos M. de Queiroz by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <acmq-at-compuland-dot-com.br>
> 
> Hi:
> 
> I obtained recently a NST rated 5000 V x 30 mA. It has two high-voltage
> terminals with ceramic insulators, two input terminals for 115 V,
> and no ground connection at the case or anywhere. It produces a
> hot spark between wires attached to the terminals, with about 4 mm
> of length, and can power a Jacob's ladder that extends the spark
> to about 3 cm. Works best if I start with a distance where sparks
> can't jump, and start a spark with an insulated screwdriver.
> 
> I imagine that without a ground connection I can operate it with
> one of the output terminals grounded. Do someone have experience
> with similar NSTs?
> 
> Antonio Carlos M. de Queiroz