The Birth of Radio Broadcasting (Part 3): Hanso Idzerda's PCGG Radio Transmitter. How does it work?
2:30
Telefonische tijdmelder - Zo werkt het!
4:57
The Colour of Sounds: the Sound Engineer
2:15
Transorma - Zo werkt het!
56:23
SAQ Grimeton historical VLF transmitter 10:00 UTC - Dec 1st centennial transmission
18:43
O Surpreendente Gênio por Trás das Máquinas de Costura
4:40
De Strenge Winter van 1979 in Winsum (Gr)
28:24
Rádio de luxo dos anos 70 restaurado: Blaupunkt Derby Commander
6:26:47