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DuovoltH

Information - Help 
ID = 14137
       
Country:
Germany
Brand: Radioröhrenfabrik GmbH (RRF) (CHF Müller // RRF // Valvo); Hamburg
Tube type:  Triode, vacuum   RF/IF-Stage 
Identical to DuovoltH

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Radio/TV-reception etc.
Filament Vf 1.8 Volts / If 0.08 Ampere / Direct / Battery =
Information source Taschenbuch zum Röhren-Codex 1948/49   
 
roehre_duovolt_h_bild_1.jpg
DuovoltH: Eigenes Bild
Anonymous 971 Collector

 

from Just Qvigstad

Collection of a member from D

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