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A406

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ID = 19775
       
Country:
Netherlands
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Developer: Philips; Eindhoven (tubes international!); Miniwatt 
Tube type:  Triode, vacuum   Audio Frequency 
  Ca. 1925 up to 1945 rare.
Identical to A406 = PR38_Condor = PR38_Pope
Similar Tubes
Normally replaceable-slightly different:
  W406
Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.06 Ampere / Direct / Battery =
Description

This tube also listed in Babani.

 
Tube prices 1 Tube prices (visible for members only)
Information source - - Manufacturers Literature   R38H 1-2-1925
L'ABCDaire des lampes de TSF des jeunes années
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
s_0_g_20.gif A406: W.Sprick: Austausch-Röhren-Lexikon 1947
Günther Stabe † 19.8.20

Just Qvigstad 		a406data1.png
A406: own collection
Peter den Boer
More ...
Usage in Models 1= 1927?? ; 3= 1927 ; 1= 1928
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):5

Collection of

Jose Vigil (RA)
Rudolf Osterkamp (D)
Marc Couque (F)
Collection of a member from FIN
Peter den Boer (NL)
John Koster (NL)
 
a406nickelphilips.jpg

A406
 

Variants

This one has a balloon shaped glass.
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