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: Thu, 6 Nov 1997 21:45:40 -0600
Approved: tesla-at-stic-dot-net

From: 	Robert W. Stephens[SMTP:rwstephens-at-headwaters-dot-com]
Reply To: 	rwstephens-at-headwaters-dot-com
Sent: 	Thursday, November 06, 1997 8:18 PM
To: 	Tesla List
Subject: 	Re: Dump the RSG!

> 
> From: 	David Huffman[SMTP:huffman-at-FNAL.GOV]
> Sent: 	Wednesday, November 05, 1997 8:39 AM
> To: 	Tesla List
> Subject: 	Re: Dump the RSG!
> 
> What if the coronatron was run in pulsed mode? Has it been and does it look
> like a RSG at the same BPS? Isn't the whole idea here to quench at the first
> null to keep the energy in the secondary?
> Dave Huffman
<snip>
> >Rob Stephens has the largest tube coil I have ever heard of (the
> coronatron-
> >10KW) and it is nice, but the RF burns touching anything within meters are
> >severe.  Most tube coils are basically just big oscillators with more or
> >less CW performance, tremendous radiation and very small sparks for the
> KWH.
> >It is what you want that makes the difference.  Big tubes make for big open
> >ended hertzian radiators.
> >
> >Richard Hull, TCBOR

Dave,

I built the Coronatron (based on 3, BR1160, EEV, 5 kW each 
dissipation triodes in parallel) to deliver smooth CW RF at the highest possible 
voltages the driving power would allow in non-breakout mode for lab work.
The early demo richard Hull witnessed employed a classical secondary 
resonator, but the Coronatron is actually being outfitted as a maggy 
with an external tertiary resonator for several reasons, the least of 
which is not a restrictive ceiling height in my high voltage test 
room.  It is not and will likely never be configured for pulse mode.

I have however done some preliminary work 
pulsing much smaller vac toob TC systems in the 1 kW range with a 
mercury thyratron in the cathode return of the oscillator with 
interesting results.  As the duty cycle the RF oscillator is reduced 
in relation to the available 60 Hz sinewave plate supply energy from 
the unfiltered mains transformer the TC discharge becomes less and 
less like a gas burner flame, and more and more like minature 
lightning bolts ala the traditional spark gap driven TC.  The noise 
level emanating from the discharge is similarly increased as the duty 
cycle of each RF burst is shortened.  In theory, shorter duty cycles should
allow one to clobber any given oscillator tube with increasing amounts of peak 
power (maintaining the average power allowed by the tube specs).  
This is something I intend to experiment with in the future as 
exeriment # 6,007.  I'm at experiment # 4,003 just now.

rwstephens