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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

Collection of a member from CH
Collection of a member from E
Collection of a member from D
Christian Schaufelberger (CH)
Sándor Perneky (H)
Peter Steffen (CH)
Bekir Yurdakul (F)
Etienne Flemal (B)
Aldo Patriarca (CH)
Christian ADAM (F)
Danko Tkalec (HR)
Hartmut Völler (D)
Patrice Zeissloff (F)
Sándor Selyem-Tóth (H)
Benedetto Pirani (I)
Antonio Varrica (I)
Karl - Heinz Bossan (D)
 
as4100_tungsram_barium_tube_704.jpg

AS4100
 
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