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ID = 22556
Brand: Funkwerk Erfurt, VEB, RFT (Ostd.) - vorm. Telefunken GmbH
Developer: Funkwerk Erfurt, VEB, RFT (Ostd.) - vorm. Telefunken GmbH 
Tube type:  Mag. Eye, 4 shadow angles 
Identical to UM171
First Source (s)
Jan.1951 : Funkschau # 1

Base GNOM 11-pin (DDR)
Filament Vf 15 Volts / If 0.1 Ampere / Indirect / Series, AC/DC
Description 8-pol. Sockel nur als Prototyp. 11-pol. mit seitl. Pumpstutzen 
Dimensions (WHD)
incl. pins / tip
x 40 x mm / x 1.57 x inch
UM171: RR
Reinhard Riek

UM171: Datenblatt Funkwerk Erfurt
Wolfgang Eckardt


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