1925 : British Radio Valves - The Classic Years: 1926-1946 supplement, p. 17
Base
UV-Base (4 Pins+Bayonet, USA 1914 WE)
Usada en
Radio/TV-reception etc.
Filamento
Vf 5 Volt / If 0.25 Ampere / Direct
Descripción
This tube is identical to the CT201A made by the parent company in the USA and is probably an import from them. The tube box is clearly marked Cleartron London and Birmingham.
Dimensiones (Alt,Ancho,Prof.) incl.pins/tip
x x 45 mm / x x 1.77 inch
Literatura
-- Collector info (Sammler) Banneitz, TB der drahtl. Telephonie u.Telegr. 1927
Wireless World (The), London (WW, 79) Cleartron Advertisement: September 1925
CT201A: W.Sprick: Austausch-Röhren-Lexikon 1947
Günther Stabe † 19.8.20
Mas ...
Just Qvigstad
CT201A: Banneitz, TB der drahtl. Teleph. 1927
Anónimo 15 Coleccionista
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