In that time I build the LimaSDR, I try to build a MOS FET Linear.   It works with the Lima so far and on 80m comes near 40 Watts out with the 2 Watts in. The uppers band was the 20m band. On 10m the linear don’t works anymore.

The transistors are under the circuit board

Here everything is biuld in

The finish Linear

But you need a switchable low pass filter!

Here you can download the Schematics: Endstufe MOSFET.sch