Re: Low-voltage NST

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

Original poster: "Dukester by way of Terry Fritz <twftesla-at-qwest-dot-net>" <dukester-at-home-dot-com>

Antonio,
Your NST probably has a secondary that is 'end point grounded' , as opposed
to 'mid point grounded', which is most other NST's.( I have many) They have
one primary and one secondary winding. If you try to draw an arc from each
of the HV terminals to the case ground, the one that doesn't arc probably is
your grounded side. If you have 2 of them, you can piggy back the HV
terminals together in series, similar to MOT's, and double your output. Make
sure the transformers are phased properly, so you won't be 'bucking power' .

Keep on Coilin'

Sparky

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Thursday, June 21, 2001 5:32 PM
Subject: Low-voltage NST


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