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ID = 15844
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Tube type:  Triode, vacuum   Power/Output 
Identical to F410 = P420_Zenith = LK4200
Similar Tubes
Normally replaceable-slightly different:
  25-550 ; K480 ; P13 ; P16 ; RO4810 ; T114 ; TM-BF25 ; U4E
Other base:
First year 1932 Tube leaflet collection E.Erb Analysis by original leaflets
First Source (s)
Jul.1930 : -- Original-techn. papers.

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 2 Ampere / Direct / Specified voltage AC/DC
Information source - - Manufacturers Literature   
Babani, International Radio Tube Encyclopaedia   p. 106 & 107
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
Taschenbuch zum Röhren-Codex 1948/49

F410: ficha de valvulas
Getulio Jimenez-Gomez

1_31.png F410: Telefunken Werkstattbuch
Wolfgang Bauer

Just Qvigstad
F410: Philips Röhren Daten 1933
Peter Hoddow

More ...
Usage in Models 1= 1935

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):1

Collection of



Forum contributions about this tube
Threads: 1 | Posts: 1
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F410 (F410)
Michel Deluz

 La résistance de 0,5MΩ de décharge de grille donnée dans le schéma d'application est dangereusement élevée d'autant plus que la configuration représentée est la polaristion fixe : Philips donne dans les caractéristique répertoriées avec ce tube 0,3MΩ pour la polarisation automatique et 0,1MΩ pour la polarisation fixe. Il vaut mieux s'y tenir. MD

End of forum contributions about this tube

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