Unsurprisingly, the internet is chock full of plans and kits for everything from full-featured QRP rigs that can work single-sideband (SSB) and continuous wave (CW) modes to tiny CW-only ...

[Pete Juliano, N6QW] built a 20 M QRP CW transmitter using just a handful of parts. That in itself will not raise any eyebrows, until you find that he built it using one of the very first RF ...