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ID = 6653
Brand: Common type Europe tube/semicond.
Tube type:  Double Diode   Detector 
Identical to KB1 = TKB1
First year Jul.1935 Tube leaflet collection E.Erb Analysis by original leaflets (V7)
First Source (s)
Jul.1935 : Die Sendung 1935 # 7
Successor Tubes KB2  

Base Europe side contact, small P5 (Au V, 5E) (Codex=Go)
Filament Vf 2 Volts / If 0.07 Ampere / Direct / Battery =
Tube prices 1 Tube prices (visible for members only)
Information source Taschenbuch zum Röhren-Codex 1948/49   

kb1.gif KB1: Prüfkarte Röhrenprüfgerät W 18N
Jörg Kulbe

Just Qvigstad
Usage in Models 1= 1936 ; 1= 1937

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):2

Collection of



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