While it is certainly possible to make a saw tooth oscillator
with a thyratron I am not sure this is the best approach for
an initial tube coil. Some of the list members have experience
using thyratron circuits that, in a sense, substitute for the
spark gap oscillator (I am trying to avoid a long discussion).
I suggest that you find a high power triode or tetrode and use a
simple time proven plate tuned oscillator circuit with self rectification.
For example 811A and 810 tubes can build tube coils capable of 10-12" corona.
An 833A can build a really nice and quite powerful CW coil that
can produce 24" corona discharge.
However, that thyratron is a dandy tube that I would certainly pick up
for the right price and add it to the parts supply. There are quite a few
HV uses (including tesla coil applications). It is simply my opinion that
this is not a good starting point.
Remember RF burns.
John W. Gudenas, Ph.D.
Department Chair of Computational and Natural Science
Aurora University, Aurora IL 60506
Office: 630-844-5539 Fax: 630-844-7830
From: Tesla List [SMTP:tesla-at-pupman-dot-com]
Sent: Wednesday, September 22, 1999 7:57 PM
Original Poster: Mark Finnis <mefinnis-at-medicine.adelaide.edu.au>
I recently asked about the following tube:
KB/P 1 of, a large beast with additional markings 5C22/NC
So, I found looking through the www:
Peak forward anode V: 16kV (a smile appears)
Ave anode current: 200mA
Peak anode current: 325A (a slightly larger smile)
From the little notice I have taken of tube postings, i suspect this would
be well suited to a tube-based coil.
Now, I have NO experience with tubes per se (but I'm keen!). Could some
kind person give me an idea of where to start (a schematic would be
Tesla Home Page: http://www.adelaide-dot-net.au/~mefinnis/