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Re: 120 or 240 or 480 BPS??
Original poster: "by way of Terry Fritz <twftesla-at-uswest-dot-net>" <Mddeming-at-aol-dot-com>
In a message dated 2/4/01 3:10:00 PM Eastern Standard Time, tesla-at-pupman-dot-com
> Subj: Re: 120 or 240 or 480 BPS??
> Date: 2/4/01 3:10:00 PM Eastern Standard Time
> From: tesla-at-pupman-dot-com (Tesla list)
> To: tesla-at-pupman-dot-com
> Original poster: "BunnyKiller by way of Terry Fritz <twftesla-at-uswest-dot-net>" <
> Tesla list wrote:
> > Original poster: "Bill Trumpet by way of Terry Fritz
> <twftesla-at-uswest-dot-net>" <billtrumpet-at-hotmail-dot-com>
> > Hello TCML,
> > Would any of you be so kind as to explain to me the fundamental
> > in the BPS settings for SRSG's? What can I expect from the different
> > rates? What rates are good for what type of XFMR? How do break rates
> > effect the cap values needed for best performance? Any and all tid-bits of
> > info appreciated.
> > Thank you all,
> > Bill Trumpet
> Hi Bill....
> basically ...... a small transformer with a cap larger than the resonate
> value of the transformer uses
> 120bps ( NST with .01mF) a large transformer ( piggie) with a smaller than
> resonate sized cap can go to
> 240 bps. A magnifier system can use 480 bps. but for best results and
> longer sparks, 120 bps is the
> optimum setting. this allows for a full charge ( current and voltage) to
> build up in the cap befor it is
> discharged to the tank circuit. (( 120 bps is set for the peaks +/- of
> the AC waveform)) any additional
> bps not at 90 (+/- 1-2 degrees) will result in partially charged caps at
> the dischage ( gap closure)
> therefore not giving you the fullest amount of power to the tank circuit.
> Scot D
A small caveat:
If you are someplace in the world with an other than 60 Hz supply, adjust BPS