How did the old portable cd player car cassette adaptors convert audio from a CD to be played over a cassette?

Question

How did the old portable cd player car cassette adaptors convert audio from a CD to be played over a cassette?

In: 11

Answer 1

Cassettes are just magnetic signals imprinted onto the magnetic tape. So the device just needed to modulate those same magnetic signals on the fly. It you take the signal from the CD, and output it as the proper magnetic signals.