Re: copper static SG problems

• To: tesla-at-pupman-dot-com
• Subject: Re: copper static SG problems
• From: "Malcolm Watts" <malcolm.watts-at-wnp.ac.nz> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
• Date: Tue, 07 Mar 2000 18:39:05 -0700
• Approved: twftesla-at-uswest-dot-net
• Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

Hi Jan,
            In answer to the second [art of your question:

> Original Poster: "Jan Florian Wagner" <jwagner-at-cc.hut.fi> 
> 
> Hi,
> 
> I'm trying to get my new static SG to work. It's made of copper tube
> pieces in series, and connected to 8kV 50mA NST and a 8nF cap. Tubes are 6
> pieces of 3" long about 1" diameter, thick copper tube pieces. They are
> placed so as just to fire at 10kVDC or so.
> 
> The problem is, I can't keep the copper from frying! Even after short run
> times, 10 sec, the copper tube get's pitch black dots that don't conduct,
> and after that the SG fails to fire... :( I have to sand the dots off
> each time to get it working again.
> 
> Am I doing something wrong?
> 
> Other thing: I've always wondered, how come a 400VA TC with a larger, say
> 4", secondary gives longer streamers than a smaller TC with exactly the
> same cap size, voltage and power level? Is this related to the frequency
> somehow?

a question: in the cases you refer to here, Cself of the resonator is 
generally lower for the smaller coils (depending on h/d ratios of 
course). How do the Ctops compare?  It is important to take all 
parameters into account. Also, there will be a difference in the 
primary inductance and almost certainly a difference in secondary 
inductance which might be affecting the impedance step-up ratio.

Regards,
Malcolm

• Prev: Re: Neon unpotting dilemma (high power factor)
• Next: Re: Secondary static shocks (Was: NSTs...DEADLY)
• Index(es):
  • Main
  • Thread