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4-400B

Information - Help 
ID = 33464
       
 
   
Tube type:  Transmitting Tetrode, air cooled   VHF 
Identical to 4-400B
Similar Tubes
Other shape (e.g. bulb type):
  4-400A ; 4-400C
Normally replaceable-slightly different:
  6775

Base SPECIAL TUBEBASE in general Top contact with a cap.
Filament Vf 5 Volts / If 14.5 Ampere / Direct
Dimensions (WHD)
incl. pins / tip
84 x 145 x mm / 3.31 x 5.71 x inch
Weight 236 g / 8.32 oz
 
4400b.jpg
4-400B: eigene Sammlung
Jörg Kulbe

 
4400b_so.png
4-400B: ARRL Handbook 1972
Michael Schlör

 


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