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E442

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ID = 1689
       
Country:
Netherlands
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Tube type:  Screen-grid Tetrode   RF/IF-Stage 
Identical to E442 = NC4 = H4100D = TM-C-EC = 4A2_Ultron = SCN4 = RS4142 = 5-442
Similar Tubes
Other shape (e.g. bulb type):
  T5-442
Normally replaceable-slightly different:
  A4GAF ; ACSS4 ; AS494 ; DW6 ; Dn2004 ; I4091 ; IS3 ; MS4 ; NC4b ; S412N ; S4150 ; S4150 ; S430N ; TE42 ; W409 ; WS300
Other class quality (otherwise equal):
  4610
Other characteristic (electr. data):
  E442S
Other base:
  E442_4pin ; E442_UY
First year 1928 Tube leaflet collection E.Erb Analysis by original leaflets
First Source (s)
Aug.1928 : -- Original-techn. papers.
1928 : Saga of the Vacuum Tube, Tyne p.422
Successor Tubes 1928   E442S  
Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928 (Codex=Fc) Top contact screw type.
Filament Vf 4 Volts / If 1 Ampere / Indirect / Specified voltage AC/DC
Description

Siehe die Unterschiede zur E442S (Kolben und elektrische Daten) - und auch die 4-Stift-Ausführung der E442.

 
Tube prices 3 Tube prices (visible for members only)
Information source Taschenbuch zum Röhren-Codex 1948/49   
e442.gif
E442: ficha de valvulas
Getulio Jimenez-Gomez
9_10.png E442: Telefunken Werkstattbuch
Wolfgang Bauer

Just Qvigstad 		e442_spec.png
E442: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector
More ...
Usage in Models 1= 1928?? ; 1= 1928? ; 6= 1928 ; 3= 1929?? ; 9= 1929? ; 36= 1929 ; 1= 1930?? ; 7= 1930? ; 36= 1930 ; 7= 1931? ; 58= 1931 ; 1= 1932? ; 37= 1932 ; 4= 1933? ; 6= 1933 ; 1= 1934?
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):214

Collection of

Collection of a member from D
Bekir Yurdakul (F)
Christian Schaufelberger (CH)
Thomas Lebeth (A)
Christian ADAM (F)
Peter Pfeiffer (D)
Thomas Nickel (D)
Heinz Schmidt (D)
Pedro Prieto-Castro (E)
Hartmut Völler (D)
Raynal Aufils (F)
Hermann Fleischanderl (A)
Benedetto Pirani (I)
Peter Kovacs (CH)
Manfred Fries (CH)
Hans- Georg Tenz (D)
 
e442_web.jpg

E442
 
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