Antique radios, Old Time Radios

1F3

Country:	Great Britain (UK)		Brand:	Ediswan (Brand) Edison Swan Electric Co.Ltd.; GB
			Tube type:	Vacuum Pentode RF/IF-Stage Controlling (mu)

Tube ID = 3859

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Identical to	1F3 = DF91 = W17
First Source (s)	Nov.1948 : - - Manufacturers Literature Tentative data sheet

Base	Miniatur-7-Pin-Base B7G, USA 1940
Filament	Vf 1.4 Volts / If: 0.05 Ampere / -: Direct / -: Battery = /
Literature	- - Manufacturers Literature

1F3: H.C.
Howard Craven

1F3: rtt
Michael Schlör

Usage in Models	1= 1947 ; 2= 1949 ; 4= 1950 ; 3= 1951 ; 1= 1952? ; 2= 1952 ; 2= 1953 ; 1= 1954?? ; 1= 1954 ; 1= 1956
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 18

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