I have been thinking about re-configuring my WSPR transmitter and adding a few more bands. I have 2 antenna, a 40m dipole and a triband vertical for 20,15 and 10m. So, the way I see it, i should be able to run WSPR on 5 bands, 80 through 10m with the 80m band being not that great.
I also figured that WSPR is nothing more than CW, so why not use class C amps and gain some efficiency. After a bunch of googling and looking at what parts I have here, i settled on the following push pull design that should cover all the bands I want.
I can fit 2 of these on the same board, and run WSPR on 80/40 and 20/15/10 transmitting on both antenna at the same time. I have a board laid out, its just a matter of sending it off to get make. And before i can do that, i need to finish off a couple of other boards i have in the works.