radiomuseum.org
Please click your language flag. Bitte Sprachflagge klicken.

B442

Information - Help 
ID = 1668
       
Country:
Netherlands
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Developer: Philips; Eindhoven (tubes international!); Miniwatt 
Tube type:  Screen-grid Tetrode   RF/IF-Stage 
Identical to B442 = R81 = DZ2 = TB42 = SC4 = H410D
Similar Tubes
Normally replaceable-slightly different:
  2-442 ; 410SC ; 4AC ; 4GAF ; 4H ; 4SC ; A4GAE ; B442/A ; B442S ; CY42 ; DS1_Thermion ; DS2 ; E200/300 ; E23 ; G442 ; L409 ; RES044 ; S100 ; S409 ; S410 ; SX406 ; TMEC ; V442
Other characteristic (electr. data):
  LH406D
Heater different:
  B442_SERIE_100
Other base:
  B442/O ; B442M ; B442_UX4
First year 1927 Tube leaflet collection E.Erb Analysis by original leaflets

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Er) Top contact screw type.
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.1 Ampere / Direct / Battery =
Description

This tube also listed in Babani

 
Tube prices 3 Tube prices (visible for members only)
Information source -- Collector info (Sammler)   
L'ABCDaire des lampes de TSF des jeunes années   p. 42
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
Taschenbuch zum Röhren-Codex 1948/49

3_5.png B442: Telefunken Werkstattbuch
Wolfgang Bauer

More ...

Just Qvigstad
b442_spec.png
B442: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector

More ...
Usage in Models 1= 1927?? ; 1= 1927? ; 2= 1927 ; 2= 1928 ; 1= 1929? ; 4= 1929 ; 1= 1930?? ; 2= 1930? ; 12= 1930 ; 11= 1931 ; 5= 1932 ; 1= 1933? ; 1= 1933 ; 1= 1934? ; 1= 1935

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):46


Collection of

 
b442_web.jpg

B442
 

You reach this tube or valve page from a search after clicking the "tubes" tab or by clicking a tube on a radio model page. You will find thousands of tubes or valves with interesting links. You even can look up radio models with a certain tube line up. [rmxtube-en]
  

Data Compliance More Information