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Prototype Synchronous RSG




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From:  Mark Finnis [SMTP:mefinnis-at-medicine.adelaide.edu.au]
Sent:  Sunday, August 16, 1998 8:04 AM
To:  tesla-at-pupman-dot-com; USA-TESLA-at-list.iex-dot-net
Subject:  Prototype Synchronous RSG

G'Day ..... as we say down here 

Further to last post, have finished the prototype for my syncRSG.  As I was
not 100% sure the motor would be big enough, nor that my NST supply would
survive, it is only a make-shift unit.

	http://www.cobweb-dot-com.au/~dkfinnis/images/rsg_prototype2.jpg
	http://www.cobweb-dot-com.au/~dkfinnis/images/rsg_prototype_tips.jpg

Anyhow, has allowed me to start playing, which after all is the only real
aim of the entire exercise.  Motor (plate states 1/100 HP) appears to
handle the polycarbonate disk & electrodes OK.  Only 1000 rpm, so this
probably helps in terms of windage etc.

Performance is not as good as the static gap.  Series copper tube gaps get
hot+++ (a fan is definitely required).  The interesting part, and real
reason for this post, is the *pattern* of the discharge is quite different.

With the static gap I basically get 1 sustained streamer which roams all
over the toroid in a violent chaotic manner (explaining the nice pics of
arc waves commented on previously).  With the sRSG, the absolute length of
streamers is less, but I appear to get 4-5 streamers in unison emerging
from the toroid.

	(before anyone states the obvious, yes I have a bigger toroid coming!)

Presentation F for the RSG is 100 bps, as we are at 50Hz down under.

I just found this interesting / confusing ??

Also of interest (to me anyway), trying the RSG for the first time I found
out what my safety gap is for ... was out of sync and *all* firing occurred
at the safety gap.




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Mark Finnis			Hm:  61 8 82895205
Staff Specialist			Wk:  61 8 82224000
Intensive Care Unit			Fax:  61 8 82236340
Royal Adelaide Hospital		Mbl:  041 23242268
www.health.adelaide.edu.au/icu
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