While they’re typically built using analog hardware, [Linus Åkesson] decided to make one using the venerable Commodore 64. The instrument works by measuring the capacitance between its two ...

[Sayaka] demonstrates this by using a cheap $20 oscilloscope to troubleshoot and repair a Commodore 64. After powering it up for the first time, the C64 displays a BASIC prompt, but none of the ...