Re: Best sparks (fwd)

• To: tesla-at-pupman-dot-com
• Subject: Re: Best sparks (fwd)
• From: Tesla List <mod1-at-pupman-dot-com>
• Date: Fri, 10 Jul 1998 22:23:46 -0600 (MDT)
• Approved: mod1-at-pupman-dot-com

---------- Forwarded message ----------
Date: Thu, 09 Jul 1998 22:43:08 -0700
From: lod-at-pacbell-dot-net
To: Tesla List <tesla-at-pupman-dot-com>
Subject: Re: Best sparks (fwd)

Malcolm wrote:


> > The 2.5MHz component in Electrum's output power is undoubtedly an
> > RC oscillation between the top C and the effective R of the arc
> > channel, for the oscillation is quite erratic in amplitude, and
> > therefore very low Q in nature.
> > -GL
> 
> Also worth noting is that there is an inherent mechanism in a
> discharge which makes oscillations possible - the negative impedance
> characteristic. The arc is not a pure resistance.

Indeed; the -Z makes it go, just like when a neon bulb 
is placed across a capacitor, and a big resistor charges
the cap from a DC source.  The R and C determine how fast
the bulb flashes, and the -Z of the neon provides the gain.
-- 


-GL
www.lod-dot-org

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