Wireless Mains Adapter-Frequency etc.?

[Nick]

Not an expert on these matters but it looks from the circuit that it's an Osc plus PA using the same devices, I would have thought that it would be diffcult to obtain an ideal switching rise time if inductance is a factor?
Maybe use the MOSFET's as PA only and drive them from a seperate switching source ie: multivib. or whatever where the rise time can be tailored to suit the switching requirements of the MOSFET's?

Its a perfectly acceptable circuit for low power if you aren't worried too much about efficiency - normally, a Royer oscillator is used (bit more efficient), but we aren't aiming for 100% power transfer - its simple, compact and does the job...

My guess is that with a decent layout, control of the parasitics and a couple of small TO220 heatsinks, this will be perfectly fine. Personally, I'd have used the Royer configuration, but this one is ok.

If you don't have suitable ferrite beads, I could bung some in the post should you wish...