Keep That Old Radio Alive With An ESP32

A hobbyist named GarethDaviesLondon built a small AM transmitter using an ESP32-S3 to keep vintage tube radios usable as legacy AM broadcast bands disappear. The device streams internet radio and transmits it via RF generated from a GPIO pulse chain, using a 3D printed coil enclosure to radiate enough signal for old radios to pick up. It currently outputs on 200kHz for the European long wave band, with the possibility of adapting to medium wave frequencies, though the legality of the low-power transmission is questionable.

Source: https://hackaday.com/2026/10/07/keep-that-old-radio-alive-with-an-esp32. 8 Sync News only summarizes and links out; content copyright belongs to the authors and original sources.