RE: You can't get 5 bangs/sec (was RE: Superior Power Supply)

["Basura, Brian" <brian.basura-at-xxxxxxxxxxxxxx> (by way of Terry Fritz <twftesla-at-xxxxxxxxxx>)]

Marco,

Good point. I'm probably seeing more than .5 bangs/second due to
re-ignition. On the other hand, one could lower the charge current so it
takes longer for the primary voltage to reach a level where the gap could
re-ignite. This would allow the electrodes time to clear each other. I'll
have to check that out next time I set it up in DC mode...

Too many projects and not enough time  :-(

Regards,
Brian B.

		-----Original Message-----
		From:	Tesla list [mailto:tesla-at-pupman-dot-com]
		Sent:	Thursday, November 16, 2000 7:02 AM
		To:	tesla-at-pupman-dot-com
		Subject:	You can't get 5 bangs/sec (was RE: Superior Power Supply)

		Original poster: "Marco Denicolai" <Marco.Denicolai-at-tellabs.fi> 

		Hi Brian.

		I wonder has you did achieve 5 bangs/s as you reported in your last mail.

		Namely, I have got a pretty fast DC charging supply and also a fast RSG but I
		can't achieve small bang rates in a "clean" way.

		What actually happen is this:

		1. Small bang rates -> small RSG rotating speed
		2.small RSG rotating speed -> RSG fixed and rotating electrodes are near each
		"long" times

		This translates in the RSG re-igniting while you are recharging the primary
		capacitor: the RSG will fire when the electrodes are face-to-face once, and
		then
		another time when the electrodes are already a little big separated. You
think
		you got 5 BPS (from the RSG running speed), but actually you get at least
twice
		(e.g. 10 BPS). You can see this only with an oscilloscope.

		You would need a "clever" charger that knowns when the electrodes are far
		enough
		and only then charges in a eye blink the capacitor. Or a triggered spark gap.

		To see the re-ignition check this picture of mine:

		http://www.saunalahti.fi/dncmrc/work/006.gif

		Regards








		"Tesla list" <tesla-at-pupman-dot-com> on 16.11.2000 01:34:31

		To:   tesla-at-pupman-dot-com
		cc:    (bcc: Marco Denicolai/MARTIS)
		Subject:  RE: Superior Power Supply



		Original poster: "Basura, Brian" <brian.basura-at-unistudios-dot-com>

		Alan,

		I have to disagree. When I had my coil set up to run in a DC mode I was
		able to let the RSG spin down to less than .5-bang per second and the spark
		length wasn't effected I was still getting 5'-6' arcs). What was noticeable
		was the thickness and brightness of the arcs decreased as the bang rate
		dropped below 4-5 bangs per second.

		Maybe Kevin O. has some comments on this. His DC coil ran at any break rate
		if I remember correctly...

		Regards,
		Brian B.