Antique radios, Old Time Radios

KB2

Country:	Europe		Brand:	Common type Europe tube
			Tube type:	Double Diode Detector

Tube ID = 563

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Identical to	KB2 = 2B6_Duodiode = TKB2
Similar Tubes	Normally replaceable-slightly different: PB2_Dario
First year	Feb.1936 Tube leaflet collection E.Erb Analysis by original leaflets
First Source (s)	Jan.1936 : Funk, Die Zeitschrift des Funkwesens # 1 Sep.1935 : Philips Bulletin #29
Predecessor Tubes	KB1

Base	Europe side contact, small, P5, Ct5,1933 (Codex=G)
Filament	Vf 2 Volts / If: 0.1 Ampere / -: Indirect / -: Battery = /
Tube prices	2 Tube prices (visible for members only)
Literature	Taschenbuch zum Röhren-Codex 1948/49


	KB2: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse Karel De Reus †

KB2: Collection JR
Jacob Roschy

KB2: Prüfkarte Röhrenprüfgerät W 18N
Jörg Kulbe

KB2: Datenblatt Telefunken
Wolfgang Bauer

Usage in Models	2= 1936?? ; 4= 1936? ; 8= 1936 ; 1= 1937?? ; 1= 1937? ; 12= 1937 ; 8= 1938? ; 20= 1938 ; 3= 1939? ; 11= 1939 ; 3= 1940
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 73

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