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ID = 25513
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Developer: Philips; Eindhoven (tubes international!); Miniwatt 
Tube type:  Transmitting Triode, air cooled   Power/Output 
  <1925 rare.
Identical to Z1 = Z-I = PT1_Pope = Z1_Ideezet
Production stop 1927
Predecessor Tubes F_Philips  
Successor Tubes TA04/5  

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Filament Vf 3.8 Volts / If 1.4 Ampere / Direct / Battery =
Description Most of the Z types had a matching rectifier which were a look-alike of the Z type. The rectifier for the Z I was the ZG I which had no grid and grid connection. The Z and Zg tubes were replaced in 1927. The successor of the Z1 was the TA04/5. 
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Dimensions (WHD)
incl. pins / tip
55 x 105 x 55 mm / 2.17 x 4.13 x 2.17 inch
Tube prices 1 Tube prices (visible for members only)
Information source - - Manufacturers Literature   1-12-1925
Z1: John Hupse collection
Fin Stewart

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Peter den Boer

Z1: own collection
Peter den Boer

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