4 ms·
The keyword is 'amalgam' - a lead crystal, a bit of wire and a headphone gets you AM reception: https://en.wikipedia.org/wiki/Crystal_radio https://en.wikipedia
by B1FF_PSUVM 2y ago
The keyword is 'amalgam' - a lead crystal, a bit of wire and a headphone gets you AM reception: https://en.wikipedia.org/wiki/Crystal_radio https://en.wikipedia.org/wiki/Crystal_radio
(the wire is optional if the signal is strong, and a 'headphone' is anything you can make vibrate with electricity)