Wireless Mains Adapter-Frequency etc.?

[Skywave]

We are only looking in general at the way they [IRF FETs] differ from valves.

"We"? You may be, but how does the spec. of power FETs - as compared to that of valves - help Mike get his cct. to work as he requires? Mike has provided some waveforms and performance data using his FETs and I have asked him to provide the cct. diagram of his prototype. Surely that is the type of information that will be helpful to us all here, and, in return, we might be able to help Mike.

Al.