From: FutureT@aol.com
Date: Fri, 17 May 2002 16:45:16 EDT
Subject: Re: [TSSP] Topload breakout potentials
--part1_73.1fc8c40a.2a16c5dc_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 5/17/02 4:27:10 PM Eastern Daylight Time, petkovic7@yahoo.com writes: Boris, That seems like a good idea. I have noticed that some of my resonant systems begin to fire at a somewhat low breakrate at low variac settings for the reason you mention. I've never actually deliberately exploited the technique, but it may be worth a try. By holding the gap somewhat narrow, it should protect the NST from failure. I also have other more robust transformers which could be set up for such a mode of operation. Thanks, John > Do you use resonant primary cap in some of your NST > powered coils? > I'm not expert in NSTs,but if they allow charging Q=30 > or more you can easily set your coil (actually with > static gap employment) to run in a "very" low BPS mode > if cap is mains resonant. > If this could be done (I wouldn't know since I dunno > of NST construction) then setting NST primary voltage > to only 5 V or so can allow charging tru many > subsequent cycles on secondary side cap- fireing near > peak of final Q raised voltage will give low BPS. > > Maybe this is a bad idea,could beadly affect NST but > this is just my thinking out'loud. > > regards, > Boris > > --part1_73.1fc8c40a.2a16c5dc_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 5/17/02 4:27:10 PM Eastern Daylight Time, petkovic7@yahoo.com writes:
Boris,
That seems like a good idea. I have noticed that some
of my resonant systems begin to fire at a somewhat low
breakrate at low variac settings for the reason you mention.
I've never actually deliberately exploited the technique, but
it may be worth a try. By holding the gap somewhat narrow,
it should protect the NST from failure. I also have other more
robust transformers which could be set up for such a mode
of operation.
Thanks,
John
Do you use resonant primary cap in some of your NST
powered coils?
I'm not expert in NSTs,but if they allow charging Q=30
or more you can easily set your coil (actually with
static gap employment) to run in a "very" low BPS mode
if cap is mains resonant.
If this could be done (I wouldn't know since I dunno
of NST construction) then setting NST primary voltage
to only 5 V or so can allow charging tru many
subsequent cycles on secondary side cap- fireing near
peak of final Q raised voltage will give low BPS.
Maybe this is a bad idea,could beadly affect NST but
this is just my thinking out'loud.
regards,
Boris
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Maintainer Paul Nicholson, paul@abelian.demon.co.uk.