Surprised this dude didn't mention the Heathkit HW QRP transceiver series. I had a chance to check-out an HW-8 when a friend asked me to repair the TX side of it. Easy fix, and didn't really need a schematic, but still found the bad diode in it. Trying out myself, before giving it back, I thought that to be a neat kit, with a pretty decent receiver on it. I'd take one today.