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CL1257

Information - Help 
ID = 74767
       
Country:
France
Brand: Métal; France (tubes)
Tube type:  Triode, vacuum   Power/Output 
Identical to CL1257
Similar Tubes
Normally replaceable-slightly different:
  10_B4
Other base and data slightly different:
  10
First Source (s)
Aug.1928 : L'Histoire Singulière du Tube Radio; G. Duperray 2009

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Radio/TV-reception etc.
Filament Vf 7.5 Volts / Direct / Parallel, (AC/DC)
Description

Similar to the 10 tube but with B4 european base

 
Information source -- Collector info (Sammler)   
 
cl1257_coll_fb_01_s.jpg
CL1257: Collection François.B
Patrice Zeissloff

 
cl1257_b4_culot.png
CL1257: Collector info
Patrice Zeissloff

 

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