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AS4120

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ID = 2445
       
Country:
Hungary
Brand: Tungsram; Budapest (see also British T.)
Tube type:  Screen-grid Tetrode   RF/IF-Stage 
Identical to AS4120
Similar Tubes
Normally replaceable-slightly different:
  AC/S_Radiorecord ; Dn9014 ; E452T ; H4111D ; RENS1264 ; S430N ; S435N ; W429_Marathon
First Source (s)
22.Nov.1935 : Wireless World (The), London (WW, 79)
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
Description

Also made in England with a top cap rather than a screw terminal.

 
Dimensions (WHD)
incl. pins / tip		 42 x 130 x mm / 1.65 x 5.12 x inch
Weight 55 g / 1.94 oz
Tube prices 1 Tube prices (visible for members only)
Information source - - Manufacturers Literature   
Babani, International Radio Tube Encyclopaedia   p. 52 & 53
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
Taschenbuch zum Röhren-Codex 1948/49
9_5.png AS4120: Telefunken Werkstattbuch
Wolfgang Bauer

Just Qvigstad 		as4120_spec.png
AS4120: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector
More ...
Usage in Models 1= 1931?? ; 2= 1932? ; 2= 1932 ; 1= 1933? ; 2= 1933 ; 4= 1934 ; 1= 1935
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):13

Collection of

Klaus Rüdiger (D)
Trev Levick (D)
John Koster (NL)
Roland Biesler (D)
Karl - Heinz Bossan (D)
Collection of a member from D
Peter Pfeiffer (D)
Christian Schaufelberger (CH)
Marco Lagendijk (NL)
Tomasz Szczesniak (PL)
Collection of a member from D
Hartmut Völler (D)
Reinhard Riek (D)
Collection of a member from SK
Aldo Patriarca (CH)
Helmut Kerninger (A)
 
as4120_1.jpg

AS4120
 
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