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Description
1) de Forest Radio Receiving Apparatus Catalog "D", 1920 (includes Audion products). When this catalog was published, the market was still largely hobbyists and experimenters. This would change with the "Radio Craze" of the mid-1920s. 2) de Forest patents: 1,183,803 for Wireless Telephone System (1916); 836,072 for Aerophone (1906); 1,183,802 for Range Teller (1916); and 1,125,496 for Wireless Telephone Transmitting System (1915). (Filed under "de Forest")
Type
image
Identifier
43F65F72-CF43-4AA5-A72B-364547821900 2003-33-1114
Subject
Electronics (LCSH)Electronic industry--California--San Francisco Bay AreaElectronic industries--California--Santa Clara Valley--History (LCSH)Santa Clara Valley (Santa Clara County, Calif.)--History--20th century (LCSH) De Forest Radio Telephone & Telegraph Co Radio--Receivers and reception--Catalogs (LCSH) Audion Vacuum-tubes (LCSH) Patents (LCSH) Telephone systems (LCSH) De Forest, Lee
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