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ID = 25720
Tube type:  Glow Indicator (Neon)   Indication 
Identical to UGM

Base Side contacts.
Filament --/--
Description Die UGM ist eine bedeckungsgesteuerte Glimmröhre von Knauf (Coburg), der Skalabereich ist ca. 90mm lang für I=0..2.5 mA. 
Dimensions (WHD)
incl. pins / tip
11 x 150 x 11 mm / 0.43 x 5.91 x 0.43 inch
Information source

UGM: Funktechnik 1947/H.8
Wolfgang Eckardt

Usage in Models 1= 1947?

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):1

Collection of



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