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Re: Magnifier Report
In a message dated 98-10-10 14:01:01 EDT, you write:
> Hmm... interesting! This kind of makes sense, since a base-driven 1/4
> wave resonator would like to "see" a current anti-node at its base.
> However, since half-wave operation doubles the driver secondary's
> turn-turn voltage stress, it will be interesting to see if this mode of
> operation can be "scaled" to higher power/disruptive operation. Suspect
> it will be a formidable challenge to provide adequate primary:secondary
> insulation while maintaining a high coupling coefficient when the
> secondary's maximum voltage point is at its midpoint. Sincve we get no
> bootstrapping benefit off the driver output voltage, true 1/4 operation
> on the tertiary coil also increases the turn-turn stress to that seen in
> a 2-coil system - no "shorty" coils need apply.
Bert,
Good points, see also my other posts to Malcolm.
John Freau
> > Lou has also tried placing a variable tuning capacitor across
> > approximately the bottom half of the secondary to assist in correctly
> > positioning the low voltage node at the base of the extra coil. This
> > tends to help the coil's performance also.
> >
>> John Freau
> Again, scaling this would be extremely challenging for a higher power
> disruptive system. Thanks again for the update,and please keep us posted
> on any further interesting work that Lou's doing!
> Safe coilin' to you!
> -- Bert - >>