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AS4100

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ID = 2444
       
Country:
Hungary
Brand: Tungsram; Budapest (see also British T.)
Tube type:  Screen-grid Tetrode   RF/IF-Stage 
Identical to AS4100 = RENS1204 = E442S = S410N = SV490
Similar Tubes
Normally replaceable-slightly different:
  Dn2004 ; NSS4 ; S430N

Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928 (Codex=Fc) Top contact screw type.
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 1 Ampere / Indirect / Specified voltage AC/DC
Information source Saga of the Vacuum Tube, Tyne   p.465
Babani, International Radio Tube Encyclopaedia   p. 52 & 53
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
Taschenbuch zum Röhren-Codex 1948/49

9_3.png AS4100: Telefunken Werkstattbuch
Wolfgang Bauer


Just Qvigstad
as4100_spec.png
AS4100: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector

More ...
Usage in Models 7= 1930 ; 4= 1931 ; 1= 1932 ; 1= 1933? ; 3= 1933 ; 3= 1934

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):19

Collection of

 
as4100_tungsram_barium_tube_704.jpg

AS4100
 

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