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

A2004S

Information - Help 
ID = 12506
       
Country:
Netherlands
Brand: Radio-Record - Röhrenmarke; Holland
Developer: Radio-Record - Röhrenmarke; Holland 
Tube type:  Screen-grid Tetrode 
  Ca. 1925 up to 1945 rare.
Identical to A2004S
Similar Tubes
Normally replaceable-slightly different:
  B442_SERIE_100

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Er) Top contact screw type.
Filament Vf 4 Volts / If 0.1 Ampere / Direct / Specified current DC = (Series working)
Information source Taschenbuch zum Röhren-Codex 1948/49   

3_37.png A2004S: Telefunken Werkstattbuch
Wolfgang Bauer


Just Qvigstad
a2004sdata.png
A2004S: own collection
Peter den Boer

 

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]
  
rmXorg