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R401

Information - Help 
ID = 76201
       
Country:
United States of America (USA)
Brand: Marvin Radio Tube Company; Irvington, NJ
Tube type:  Triode, vacuum   Audio Frequency 
Identical to R401
Similar Tubes
Normally replaceable-slightly different:
  401_McCullough

Base UX-Base (4 Pins (2 thick, USA 1924, UX) 2 Top contacts
Was used by Radio/TV-reception etc.
Filament Vf 3 Volts / If 1 Ampere / Indirect / Parallel, (AC/DC)
Dimensions (WHD)
incl. pins / tip
x 135 x 42 mm / x 5.31 x 1.65 inch
Weight 52 g / 1.83 oz
 
marvin_ry401_box.jpg
R401: George Fathauer collection
Fin Stewart

 
usa_401_ac_tube.png
R401: Fin Stewart
Fin Stewart

 

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