I've been building a QRSS beacon kit that I purchased from Hans Summers:
It's a neat little package, which came as a complete kit. Mine is built for 40M.
Here's the kit with only the IC holder in place:
And here the kit is neary complete; only problem is I have L1 and L2 the wrong way round!
I've added some veroboard as a wider board to fit into the box I had in mind for the project, and included a 6V regulator in there to enable me to power this from the same source as all the other junk in the shack:
And here is the kit boxed and ready for alignment, I've also added a power switch and power on LED, plus a switch to put the keyer into 12wpm CW for testing or 6s dot length for QRSS running. Theres also a second LED to indicate that the kit is running in QRSS mode:
I've had a poke about with the scope and all looks as expected, I need to align the output frequency and spend some sime setting up the frequency shift.
I'll post more as I do that.