XBM80-2

 

Yesterday, I posted the 10m Lesser Chirpy. This was based on the 80m XBM80-2 QRP CW transceiver which is shown here. 

You would be hard pressed to make this transceiver much simpler! Do not be afraid to experiment - I am sure you can do better. 

S1 provides offset between RX and TX by shifting the crystal frequency, how much will depend on C1. You could always make C1 adjustable so the offset is what you want.

See https://sites.google.com/view/g3xbm4/home/hf-mf-and-lf/homebrew/80m-xbm80-2 .