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7721

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ID = 6203
       
 
   
Tube type:  Vacuum Pentode 
Identical to 7721 = D3a
Similar Tubes
Other characteristic (electr. data):
  7722 ; E280F

Base Noval, 9 pin miniature (USA pico-9) B9A
Filament Vf 6.3 Volts / If 0.32 Ampere / Indirect
Information source Essential Characteristics, GE 1973   

7721_sock.png 7721: Telefunken Taschenbuch 1971
Anonymous 15 Collector

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Just Qvigstad
7721_spec.png
7721: Telefunken Taschenbuch 1971
Anonymous 15 Collector

 

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