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C142

Information - Help 
ID = 1665
       
Country:
Netherlands
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Developer: Philips; Eindhoven (tubes international!); Miniwatt 
Tube type:  Screen-grid Tetrode   RF/IF-Stage 
  Ca. 1925 up to 1945 rare.
Identical to C142 = H125D
Similar Tubes
Other base:
  C142_UX4
First year 1927 Tube leaflet collection E.Erb Analysis by original leaflets
First Source (s)
1927 : Saga of the Vacuumtube, Tyne p.421

Base Europe 4-Pin (A, 4A, B4, since 1914) (Codex=Er) Top contact screw type
Was used by Radio/TV-reception etc.
Filament Vf 1 Volts / If 0.25 Ampere / Direct / Parallel, (AC/DC)
Tube prices 2 Tube prices (visible for members only)
Literature - - Manufacturers Literature   R306H 10-12-1927
Taschenbuch zum Röhren-Codex 1948/49   
  c142.gif
  C142: ficha de valvulas
Getulio Jimenez-Gomez
 
c142_philips~~1.jpg
C142: Sammlung IM
Anonymous 557 Collector

 
s_2_g_1.gif
C142: W.Sprick: Austausch-Röhren-Lexikon 1947
Günther Stabe

 
c142.png
C142: own collection
Peter den Boer


Usage in Models 3= 1927 ; 3= 1928? ; 4= 1928 ; 2= 1929

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):12


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