but never one quite like [Nate Croson]’s CRT TV guitar amplifier. The LM386 doesn’t just drive the speaker, he’s also using it to turn the TV into a crude oscilloscope to form a ...

The microcontroller also has a number of built-in operational amplifiers which are used ... his RP2040-based oscilloscope is definitely worth checking out.

Rohde & Schwarz is claiming to have invented a new test set-up for verifying power amplifier performance when connected to an ...