Re: Dump the RSG!

To: "'Tesla List'" <tesla-at-poodle.pupman-dot-com>
Subject: Re: Dump the RSG!
From: Tesla List <tesla-at-stic-dot-net>
Date: Mon, 3 Nov 1997 07:51:21 -0600
Approved: tesla-at-stic-dot-net

From: 	gweaver[SMTP:gweaver-at-earthlink-dot-net]
Sent: 	Sunday, November 02, 1997 11:27 PM
To: 	Tesla List
Subject: 	Re: Dump the RSG!

I have been thinking the exact same thing.  I have also been straining my
brain trying to figure out how to build such a spark gap device.  Naturally
you will have to forget the cost because you can't build it for $100. unless
you have access to some free parts.  The next problem to deal with is the
high voltage.  I have 30 SCR's 600 VAC 400 AMPS and if I connect all in
series I get 18,000. volts.  Brake over voltage will make the SCR's conduct
during the half cycle and turn off during the other half cycle but the HV
feed back voltage will probably kill all the SCR's.  There are some tubes
available for HV but they won't handle the current, but I could put several
tubes in parallel and create a night mare spark gap.  A triode tube rated
10,000. volts 1 amps might do the trick. The power supply voltage will have
to be less than 10K or two tubes could be connected in series for 20K.  The
tubes can be set in cutoff and conduct only on the peak of the AC cycles.  A
properly sized capacitor on the screen grid might help to adjust the dwell
time.  Two tubes in series will have to have a battery power supply for the
heaters because the HV would arc threw transformers power supplies and fry
everything.  The TC would have to be sized to the power rating of the tube
or more tubes could be added in parallel to get more power.  The problem is,
the thing we need for this spark gap has not been invented yet. That didn't
stop Thomas Edison he just invented what ever he needed.

Gary Weaver


At 10:35 PM 11/2/97 -0600, you wrote:
>
>From: 	richard hull[SMTP:rhull-at-richmond.infi-dot-net]
>Sent: 	Sunday, November 02, 1997 4:05 AM
>To: 	Tesla List
>Subject: 	Re: Dump the RSG!
>
>At 02:42 PM 11/1/97 -0600, you wrote:
>>
>>From: 	Greg Leyh[SMTP:lod-at-pacbell-dot-net]
>>Sent: 	Saturday, November 01, 1997 6:17 AM
>>To: 	Tesla List
>>Subject: 	Re: Dump the RSG!
>>
>>bmack wrote:
>>
>>
>>> Seeing so many RSG posts, and the problems associated with
>>> them, made me wonder why not move on to something better?
>>
>>[snip]
>>
>>> Personally,I believe since we are now 100 years hence, we should be able
>>> to process a good deal of power without all that arcing and sparking
>>> in the primary circuit. Leave that for the secondary!
>>
>>Why not move on to solid-state, and avoid the moving parts as well?
>>
>>
>>-GL
>>
>>
>
>
>Wow!  That is great!  Just what we have been waiting for!  What catalog can
>I order a solid state switch that can commutate 20 -50 megawatt pulses with
>peak currents near 1000amps at 20,000 volts about 500 times per second?  Oh
>yeah, its gotta cost me no more than my current gap system.
>(~$100.00)......Also it would be nice if I could repair it if something goes
>highorder in it.  I eagerly await the reply....I too, am tired of farting
>around with all this mechanical junk!!!!
>
>Richard Hull, TCBOR
>>
>>
>
>
>
>
>