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Re: Dump the RSG!




From: 	richard hull[SMTP:rhull-at-richmond.infi-dot-net]
Sent: 	Tuesday, November 04, 1997 5:37 PM
To: 	Tesla List
Subject: 	Re: Dump the RSG!

At 08:46 PM 11/4/97 -0600, you wrote:
>
>From: 	Greg Leyh[SMTP:lod-at-pacbell-dot-net]
>Sent: 	Tuesday, November 04, 1997 4:51 AM
>To: 	Tesla List
>Subject: 	Re: Dump the RSG!
>
>Richard Hull wrote:
>
>
>> I hope everyone realizes by now that the above was a total tongue-in-cheek
>> response to Greg's equally ludicrous suggestion.
>> 
>> I have long studied the issue and realize there exists nothing on the
>> surface of the planet even at 50 times the 100 dollar price tag that can
>> begin to handle what my trusty old series quench rotary will do and survive
>> with virtually zero maintainence or fear of destruction!
>
>
>No, really, I'm serious!  Symmetrical Modified GTO's have come of age,
>and are
>used in pulsed power applications, such as the abort kickers on CERN's
>new LHC.
>
>V off = 4500V per stacked device
>Ipeak = 80kA
>Irise = 12kA/uS
>I^2*t = 1,600,000.
>
>At 3000A the GTO's forward on-voltage is only 4 volts per stacked
>device, 
>compared to 1400V for my 4-point rotary gap!  A standard coil outfitted 
>with a GTO stack and a resonant charger would be far more efficient than 
>magnifier with a conventional rotary.
>
>
>-GL
>

Our own Dave Sharpe has been trying to interest me in these things.  They
are still stacked devices (effectively series chains).  I usually end it all
by telling him to get a couple (one to show and one to blow) and then we can
roll up our sleeves.  Dave has intimated they are in the kilobuck plus range. 

I'm still waitin'.....  Could it be that they are pricey?  Anyone wanna get
one and try it out?  I figure in about 10-15 years we'll get 'em at hamfests
for a few bucks...I'll wait until I can buy a big bag full for $20.00.

 At least the H2 thyratrons are forgiving.  I have sparked a bunch of 'em
(Freau'd them) and molten metal has flown through the device, but they all
came back.  I think these solid state devices would be fused by a minor
oversight.

Richard Hull, TCBOR
>