I have an assembled QRP Labs 40m CW QRP transceiver that puts out around 3W. There is a UTube tutorial online showing how to align L1 - L3 to get 5W! I have custom made an extender cable so one can see the display while doing the inductor alignments. Fully assembled and working. Needs inductor alignment. Selling for $68 including S & H.
syd wt1v