“You can’t put new wine in old bottles” – so the saying goes. But you would if you’re a hacker stuck with a radio built in 2005, which looked like it was put together using technology from 1975.

I have no idea what optional switch Toyota might have put in this under-dash opening, but it's a perfect location for my audio devices Since I was not willing to drill or cut any holes anywhere in my ...

It started with an old TV sound chip, and some curiosity. The TDA1701 that [Philip Bragg] found in a box of junk is a complete FM IF strip and audio power amplifier from the golden age of analogue PAL ...

Amplitude modulation (AM) is an important technique in the engineering world for analog or digital data links and encoding, sensor signal chains, and other design imperatives. In contrast, AM radio is ...