8020

Common type Worldwide tube/semicond. Valvo GmbH, Radioröhrenfabrik; Hamburg Mullard Radio Valve Co. Ltd.; Philips; Eindhoven (tubes international!); Miniwatt Amperex; New York Cetron Electronics, Continental Electric Co.; St. Charles / Geneva (IL) Eimac (brand name) General Electric Co. (GE); Bridgeport CT, Syracuse NY Hytron; Salem (MA) Lewis & Kaufman Ltd, Los Gatos, CA National Union Radio Corp.; Orange (NJ) RCA (RCA Victor Co. Inc.); New York (NY) Taylor Tubes Inc.; Chicago (IL) United Electronics Co.; Newark, NJ Westinghouse El. & Mfg. Co. - see also Canadian W.