Re: Problems & DC drive solutions

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Kevin Ottalini by way of Terry Fritz <twftesla-at-uswest-dot-net>" <ottalini-at-mindspring-dot-com>

Chuck:
	Using an inductor is very reasonable, especially with 
lower voltage transformers.  Greg Leyh used such an approach
on his monster TC very successfully, and I use exactly the
same approach on my small (5 watt) 24KV and slightly larger
(10 watt) 60KV power supplies that I build.

As you point out, such "reactors" are difficult to find/build
especially in the power range that TC'er typically need.

Again, for first-level DC systems, a resistor is a much easier
and less expensive solution.

Best,
	Kevin

----------
> From: Tesla list <tesla-at-pupman-dot-com>
> To: tesla-at-pupman-dot-com
> Subject: Re: Problems & DC drive solutions
> Date: Monday, January 08, 2001 4:03 PM
> 
> Original poster: "Charles Hobson by way of Terry Fritz
<twftesla-at-uswest-dot-net>" <charles.a.hobson-at-btinternet-dot-com>
> 
> I am considering building something similar. Mine will employ what I
think
> use to be called DC resonance, what ever that is. Radar modulators used
> them. DC fed to a charging choke and the choke feeds the primary coil
> capacitor. The choke isolates the capacitor from any components RF wise
in
> the dc supply. When dc is first applied to the charging choke, the
capacitor
> it feeds will charge up to twice the DC voltage at a time depending on
the
> Inductance and capacitance values. The idea is to fire the spark gap at
that
> point and the dc charging begins all over again. The charging choke will
be
> the difficult item to come by. Its construction will be similar to that
in
> HV transformers NST etc. I think such a set up would be amiable to RSPs
and
> it would be most efficient. No ballast required etc. Does this approach
> sound reasonable. Oh yes, I do recall rotary spark gaps on various Radars
of
> the 40's and 50's.  The US Navy SO radar on small auxiliary ships and
> tankers and the US Army TPS-1b.radar.  Does that ring any bells?
> 
> Chuck
> 
>