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A414

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ID = 2742
       
Country:
Netherlands
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Developer: Philips; Eindhoven (tubes international!); Miniwatt 
Tube type:  Triode, vacuum 
  Ca. 1925 up to 1945 rare.
Identical to A414
Similar Tubes
Other shape (e.g. bulb type):
  A414K
Other characteristic (electr. data):
  A415

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.08 Ampere / Direct / Battery =
Description

Detector and first LF. Anti-microfonic tube.

 
Dimensions (WHD)
incl. pins / tip
41 x 93 x 31 mm / 1.61 x 3.66 x 1.22 inch
Information source - - Manufacturers Literature   R730H 15-7-1929
Universal Vade-Mecum, Electron Valves and Semiconductor Devices   Section 98, p. 132p.
Röhrencodex , Röhren-Taschenbuch 1950 23000 Röhren

s_0_g_6.gif A414: W.Sprick: Austausch-Röhren-Lexikon 1947
Günther Stabe † 19.8.20


Just Qvigstad
a414data1.png
A414: own collection
Peter den Boer

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Usage in Models 1= 1928? ; 1= 1928

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):2

Collection of

 
a414_philips.jpg

A414
 

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