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137A

Information - Help 
ID = 13492
       
Country:
United States of America (USA)
Brand: Arcturus Radio Tube Co.; Newark, NJ
Tube type:  Triode, vacuum   Audio Frequency 
Identical to 137A
Similar Tubes
Other shape (e.g. bulb type):
  37
Normally replaceable-slightly different:
  137 ; 237 ; 37A

Base UY-Base, 5 Pins (USA, April 1927) (Codex=H)
Filament Vf 6.3 Volts / If 0.3 Ampere / Indirect / Parallel, (AC/DC)
Literature Taschenbuch zum Röhren-Codex 1948/49   
  37~~3.png
  137A: Internet
Miguel Angel Trujillo-Rodriguez
 
137aarturus_1_klein.jpg
137A
Geri Meier

 
137a_so.png
137A: ARRL Handbook 1972
Michael Schlör

 


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