Re: Magnetic quenching.

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

Original poster: "Virtualgod" <mike.marcum-at-zoomtown-dot-com> 

Wouldn't those gaps pull long sparks in open air like a rotating jacobs
ladder?
----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Friday, March 12, 2004 12:59 AM
Subject: Re: Magnetic quenching.


 > Original poster: Bert Hickman <bert.hickman-at-aquila-dot-net>
 >
 > Hi Gary,
 >
 > Before vacuum tube or solid state high voltage rectifiers were available,
 > synchronous mechanical rectifiers were used to synchronously switch (like
a
 > mechanical H-bridge!) the output from a HV transformer to create HV DC for
 > X-ray machines and electrostatic precipitators. They tended to be large,
 > loud, and needless to say, sparked a lot, and made tons or RFI...  :^)
 >
 > Here are a couple of examples:
 > http://home.freeuk-dot-net/dunckx/wireless/bridge/bridge.html
 > http://www.iavalley.cc.ia.us/~thatcher/snookdia.jpg
 >
 > Best regards,
 >
 > -- Bert --
 >
 > Tesla list wrote:
 > >Original poster: "Lau, Gary" <gary.lau-at-hp-dot-com>
 > >I have not done a lot of reading of Tesla's material.  I have to wonder
 > >how he managed to build a HV DC power supply?  Wasn't this before HV
 > >vacuum tube rectifiers were available?
 > >I can't imagine that the "blast" created by convection currents would be
 > >very effective.
 > >Gary Lau
 > >MA, USA
 > >
 > >Original poster: "David Thomson" <dave-at-volantis-dot-org>
 > >Hi Finn,
 > >  > perhaps it is time to nail down what to expect from applying a
 > >  > magnetic field across the arc.
 > >  >
 > >  > One would expect that it would merely bend into a curve, making it
longer,
 > >  > which hardly seems desirable.
 > >If you have a copy of Tesla's "Inventions", go to page 305 and read the
next
 > >few pages on spark gaps (he calls them "interrupters").  Tesla says a
 > >magnetic gap is good for both an AC and DC coil, but particularly good
for a
 > >DC coil.
 > >His description of his "air-blast" gap is interesting.  Instead of using
 > >compressed air, Tesla enclosed his gap in either an air tight box or
tube.
 > >The draft caused by the rising warm air provided the air blast.
 > >Dave
 > >
 > >.
 >
 >
 >
 >
 >