Re: 2 simple questions - SCR devices - continued

To: tesla-at-poodle.pupman-dot-com
Subject: Re: 2 simple questions - SCR devices - continued
From: Tesla List <tesla-at-stic-dot-net>
Date: Thu, 13 Mar 1997 23:28:27 -0600
Approved: tesla-at-stic-dot-net

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To: tesla-at-pupman-dot-com
Subject: Re: 2 simple questions - SCR devices - continued
From: "Malcolm Watts" <MALCOLM-at-directorate.wnp.ac.nz>
Date: Fri, 14 Mar 1997 13:12:33 +1200
Organization: Wellington Polytechnic, NZ
Priority: normal

Hi John,
           Do you have the specs on his coil handy? I'd be interested 
to know the primary surge impedance and resonant frequency in 
particular. It sounds as if the dV/dt rating was exceeded (lack of 
controlled turnoff). 

Thanks,
Malcolm

> Lou Balint of PA has used SCR's to simulate a spark gap by controlling them
> with a pulse generator.  He used about 600 volts, and obtained 7" sparks or
> more.  The units were rated for about 200 amps I think.  He was unable to
> make them "turn off" until the primary tank energy had rung down.  Eventually
> they burned up.
> 
> Happy SCR coiling  :)
> 
> John Freau

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