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4Y25N

Information - Help 
ID = 71103
       
Country:
France
Brand:
Tube type:  Beam Power Tube   Power/Output 
Identical to 4Y25N = 807
Similar Tubes
Normally replaceable-slightly different:
  4Y25
First Source (s)
1953 : - - Manufacturers Literature

Base UY-Base, 5 Pins (USA, April 1927) Top contact with a cap
Was used by Transmittertube (Radio)
Filament Vf 6.3 Volts / If 0.9 Ampere / Indirect / Parallel, (AC/DC)
Dimensions (WHD)
incl. pins / tip
x 146 x 50 mm / x 5.75 x 1.97 inch
Literature Taschenbuch zum Röhren-Codex 1948/49   
 
4y25_807_mazda_ph1r.jpg
4Y25N: Patrice ZEISSLOFF
Patrice Zeissloff

 
5aw_1~~1.png
4Y25N
Emilio Ciardiello

 
4y25n_807_mazda_catalogue_1962.png
4Y25N: Mazda
Patrice Zeissloff



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