I recently came a cross the four state qrp group’s ns-40 kit and it looked interesting. The kit has now been retired, but the schematic is available and I had everything I needed to build the circuit, so I slapped it together on a breadboard.
This is basically just a proof of concept for me to make sure that I could get the circuit oscillating. I had it plugged into the paint can dummy load and I am keying it with that little push button. I think I’ll rebuild it on a piece of copper clad and do a bit more experimenting with it.