Tuning for Class-E Re: [TCML] Tuning SSTC to avoid losing oscillation when I try and draw discharge

[Andreas Hahn <andreas.hahn@xxxxxxxxxxx>]

I rebuilt the MicroSSTC's driver to Steve Ward's Class-E SSTC schematic.

Using a shielded magnetic loop (which gives output proportional to 
dI/dt) scope probe on the primary lead suggests the primary is tuned way 
too high... with the main spike lasting well under 1/10th of the MOSFET 
turn-off / turn-on time. (the MOSFET gate goes HIGH for 10uS)

This seems odd, as I increased the capacitor value by a factor of 10 in 
the rebuilding (to 0.01uF), so I figure it should be tuned too low 
[capacitor taking longer to charge] if anything.

Tripling the number of turns on the primary and playing with 
coupling didn't change much either.

Any thoughts?
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