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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 ; 1= 1934? ; 3= 1934
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):20

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)
Sándor Selyem-Tóth (H)
Benedetto Pirani (I)
Antonio Varrica (I)
Karl - Heinz Bossan (D)
Patrice Zeissloff (F)
 
as4100_tungsram_barium_tube_704.jpg

AS4100
 
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