Marked: "Radiogem / The Radiogem / Corporation / New York". A kit to make a crystal radio receiver, including original package and instruction manual. Unit is a commercial variety of the old Quaker ...

Crystal radio receiver with vertical coil, written on bottom: "right ground / left ariel" [sic], and "lower down / ground [wire?] / higher up at / left is / ariel" [sic]. arrow-up Back to top ...