Re: Problems & DC drive solutions

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

Original poster: "Steve & Jackie Young by way of Terry Fritz <twftesla-at-uswest-dot-net>" <youngs-at-konnections-dot-com>

Chuck,
You are on the right track with DC and charging chokes.  See www.lod-dot-org for
amazing examples of this approach employed by Greg Leyh in huge coils (e.g.
Electrum).  There are also descriptions submitted by Greg in the archives.
You might also be interested in Larry Robertson's H-Bridge DC systems, also
described in the archives.  The latter doesn't need any choke or ballasting,
but the RSG is a little more complex.
--Steve
----- Original Message -----
From: Tesla list <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Monday, January 08, 2001 5:03 PM
Subject: Re: Problems & DC drive solutions


> 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
>
>
>
>