Crystal Radio Diode
Germanium Radio
File:Vintage Planatair Germanium Crystal Radio, No. 76404, Planatair - World's Smallest Radio, Earphone Listening Only, Made In Japan, Circa 1965 (14856531343) (cropped).jpg - Wikimedia Commons
Crystal Radio Circuits
Germanium Radio GR-85 Crystal Union Co. Ltd.; Yokohama, build 1958 ?? | Radiomuseum
Germanium Radio
Germanium Radio GR-10 Crystal Crown Radio Corp.; Tokyo, build 1955 ?? | Radiomuseum
Crystal Radio Circuits
Pin on Vintage Crystal Radio Collection - Joe Haupt
4 Transistor AM Radio Receiver using Germanium diode - YouTube
Crystal Rocket Radio ~ Germanium Diode
File:Vintage Miniman Germanium Crystal Radio, Model M-702, Made In Japan, Circa 1960 (23356082450).jpg - Wikimedia Commons
Crystal Radio Set ~ Union Brand ~ Japanese
M GERMANIUM RADIO, 60´s, Made in Japan. | Unknown model and … | Flickr
Antique-style crystal radio kit, a sample of the element Germanium in the Periodic Table
File:Vintage Kent Germanium Crystal Radio, Model MG-50, Made In Japan, Circa 1950s (16294265736).jpg - Wikimedia Commons
3V Germanium Transistor Radio
File:Vintage Union Germanium Crystal Radio, Model GR-84, Made In Japan, Circa 1958 (48638055683).jpg - Wikimedia Commons
