Catalogue
592 of 655 records previous / next
Marconi Radio Valve Type FE2, by Marconi Company, London, c. 1922
Inventory Number: 92775
Date: c. 1922
Maker Details: Attributed to Marconi-Osram Valve Co. Ltd.
Inscription: "5 RR11FA / 30" stamped on exterior surface of bulb.
Size: 75 mm in overall length
Materials: Glass, nickel?, assorted metals.
Other Given Number(s): Christie's 197.
Notes:
Marconi Radio Valve Type FE2 (Four Electrode 2), in thin glass envelope with nickel-plated? caps. With cylindrical band mesh lattice surrounded by additional cylindrical mesh lattice. Uses positive tension to draw electrons to anode. Previously catalogued with five other valves: Marconi Type Q Valve (Inv. Num. 33191), Marconi Type V24 Valve (Inv. Num. 35245), Marconi DEV Valve (Inv. Num. 15771), Marconi DEQ Valve (Inv. Num. 74920), Mullard ORA/B Valve (Inv. Num. 18833).
592 of 655 records previous / next
Record mode: Basic | Medium Images | Large Images | Documents (2)