Engineers in Iran have taken to new math equations. Iirc, it was dealing with the irf640 at 11 meter ism. He used a different values than socal, etc. Equations give.

I can try to dig it out of the phone. Pdf file, and I've got about 20 gig of them on the phone.

He does give the basics for the way he generated his values, as well as almost every value for a working amplifier.

--Shane

KD6VXI

Thanks Shane.

I know he gave equations but what were the source of those equations?

When I ran the classE equations on Matlab the values of the drain caps on the finals did not jive with his results. ME wonders what power rating he was using to obtain those values.

As far as simplifying his design there are many ways to do it. For example, using IXDN614CI instead of his bipolar driver circuit saves many components. I would use my timing and pulse-width controller to get optimum delay and pulse width.

As far as power, I want about 250 Watts carrier with a PDM modulator. I have Steves PDM card populated and I have a T-400A core.

I do like the idea of the push-pull circuitry as per Dave Cripe's design.

Phil - AC0OB