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PP4

Information - Help 
ID = 11511
       
Country:
Europe
Brand: Common type Europe tube/semicond.
Tube type:  Vacuum Pentode   Power/Output 
Identical to PP4
Similar Tubes
Normally replaceable-slightly different:
  E443H ; PM24M ; PP4101

Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928 (Codex=Foo)
Filament Vf 4 Volts / If 1.1 Ampere / Direct / Parallel, (AC/DC)
Description Manufactured by Tungsram in the UK and Hungary.
Audio output 2.8W. Typ Va 250V; Ia 36mA; Vg -15; Ra 42k ohms; gm 3.5mA/V 
Dimensions (WHD)
incl. pins / tip
38 x 108 x mm / 1.50 x 4.25 x inch
Weight 50 g / 1.76 oz
Information source Taschenbuch zum Röhren-Codex 1948/49   
Babani, International Radio Tube Encyclopaedia   
 
pp4.jpg
PP4: RFJ
Roy Johnson

 
s_3_g_15.gif
PP4: W.Sprick: Austausch-Röhren-Lexikon 1947
Günther Stabe

 

from Just Qvigstad


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