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E81CH

Information - Help 
ID = 80704
       
Country:
Germany
Brand: Siemens; D (S.& Halske / S. Electrogeräte)
Developer: Philips; Eindhoven (tubes international!); Miniwatt 
Tube type:  Triode-Heptode   Frequency converter   Controlling (mu) 
Identical to E81CH
Similar Tubes
Other class quality (otherwise equal):
  ECH81

Base Noval, 9 pin miniature (USA pico-9) B9A
Filament Vf 6.3 Volts / If 0.3 Ampere / Indirect / Parallel / series AC/DC
 
e81ch_47_rm20p.jpg
E81CH: Collection JR
Jacob Roschy

 
e81ch~~1.gif
E81CH: AH eigene Sammlung
Alexander Hofer

 

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