Re: S.s. info...re: differing secondaries

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

Original poster: "Luc by way of Terry Fritz <twftesla-at-uswest-dot-net>" <ludev-at-videotron.ca>

Hi Richie

I save the doc about your SSTC couple of month ago on your web site and I
post a question on the list about
using a feedback coil to drive a solid state coil or something similar but
no response ( some time my
english could be hard to understand ;-)) ) any way I saw you want to work
on that approach. Please keep us
inform I'm highly interested.

Luc Benard

Tesla list wrote:

> Original poster: "R.E.Burnett by way of Terry Fritz
<twftesla-at-uswest-dot-net>" <R.E.Burnett-at-newcastle.ac.uk>
>
> Hi Ken,
>
> Thanks for putting our minds at rest ;-)
>
> I was going to post you a question asking how you ensure that your driver
> locks on to the "Fundamental" of your resonator and not one of the higher
> "Harmonics" of the resonator.
>
> I guess your phase adjustment circuit performs a similar function to the
> tuned grid used by the tube guys ???   Does this ensure that the
> oscillator does not accidentally start at 3xF instead of the fundamental
> frequency ???
>
> Sorry for all the questions,  but I'm thinking of converting my SSTC so
> that it uses the primary current as the reference to switch the FETs.
>
>                                                         Cheers,
>
>                                                         -Richie Burnett,
>
> > Original poster: "Kennan C Herrick by way of Terry Fritz
> <twftesla-at-uswest-dot-net>" <kcha1-at-juno-dot-com>
> >
> > To John Freau, R. E. Burnett et al:
> >
> > Big dummy that I am, I neglected to realize that I had to adjust the
> > phase angle of the signal I pick off the secondary for excitation of the
> > primary circuit.  Just now, temporarily substituting a sig. gen. output
> > for that signal, I find that my 36" space-wound coil does indeed seem to
> > function at least as well as the 52" one.  I'll still construct the
> > close-wound 36" coil (more like 32" if I can only get a 10# wire spool)
> > so as to compare that to the others.
> >
> > Next task is to incorporate a selectable-phase-shift circuit so as to
> > accomodate various secondaries conveniently.  It just goes on & on.
> >
> > More later...
> >
> > KCH
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