B339 ETC2 | Alldatasheet
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12-6V INDIRECTLY HEATED AUGUST 1955 —_ ISSUE 1 BASE CONNECTIONS AND VALVE DIMENSIONS tote ¢ ” 9) SQ Base: BIA k’ of Ro 9” Bulb: Tubular fat Max all length: 56am dt AMpy ness cvre ngs 1) ©) Max. diameter: 22-2mm o rep VIEW FROM UNDERSIDE or ust HEATER Yn 126 63 v Th 0-15 0-3 A MAXDOM RATING (Per eysten) Va 300 v Pa 1 W Ik 8 mA Rgk 262 vo ‘ex 180 v GAPACITANCES (of unscreened valve) Catag! 1:7pF Catgt L-7pF egtek! 1-6pF ogt—k" 1-6pP Ca'ek! O-46pF C_"-k" 0-34pF Catna" 0-75pF Continued overleaf: a MARCONI’S WIRELESS TELEGRAPH COMPANY LIMITED Head Office: Marconi House, Chelmsford - Telephone : Chelmsford 3221 . Telegraphic Address: Expanse, Chelmsford
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