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.
A Sinclair ZX81 came with 1K of RAM but you could add a 16K external pack for about £70 that was a bargain about 46 years ago.
A Sinclair ZX81 came with 1K of RAM but you could add a 16K external pack for about £70 that was a bargain about 46 years ago.
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