Simple QRP projects, 10m, 8m, 6m, 4m, FT8, 160m, WSPR, LF/MF, sub-9kHz, nanowaves and other random stuff, some not related to amateur radio.
Like many, I like the idea of getting something for nothing.
This circuit was on the website of KE3IJ some years ago. I think the website is no longer there.
The same idea might even work with a microwatt beacon?
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