Bright emitter. Advertised in 1925 as low cost valve/tube at 7 shillings (0.35 GBP).
Dimensioni (LxAxP) incl.pins/tip
54 x 130 x 27 mm / 2.13 x 5.12 x 1.06 inch
Peso
52 g / 1.83 oz
Bibliografia
Wireless World (The), London (WW, 79) Radions Advertisement September 1925
British Radio Valves - The Classic Years: 1926-1946 P. 251 & 332; Supplement, p. 85
- - Manufacturers Literature
GP: Fin Stewart
Fin Stewart
Just Qvigstad
GP: Banneitz, TB der drahtl. Teleph. 1927
Anonimo 15 Collezionista
