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OP70/1000

Information - Help 
ID = 25835
       
Country:
Hungary
Brand: Tungsram; Budapest (see also British T.)
Tube type:  Triode, vacuum   Power/Output 
Identical to OP70/1000
Similar Tubes
Normally replaceable-slightly different:
  75-1000

Base Jumbo 4-pin bayonet (1918)
Filament Vf 10 Volts / If 1.5 Ampere / Direct / Parallel, (AC/DC defined voltage)
Information source Taschenbuch zum Röhren-Codex 1948/49   
 
st_1.jpg
OP70/1000: Sammlung RS
Reiner Scholz

 
op701000.png
OP70/1000: Tabu Röhren-Codex, 1948
Anonymous 15 Collector

 
h_tungsram_op70_1000_dimension.png
OP70/1000: Tungsram, in Januar. 1936, I. Auflage.
Sandor Selyem-Tóth


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