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2D4B

Information - Help 
ID = 6506
       
Country:
Great Britain (UK)
Brand: Mullard Radio Valve Co. Ltd.;
Tube type:  Double Diode   Detector 
Identical to 2D4B
Similar Tubes
Other base and other heater:
  EB34 ; EB4

Base British-7-Pin, old (M7A) (Codex=N)
Filament Vf 4 Volts / If 0.35 Ampere / Indirect / Parallel, (AC/DC)
Information source Taschenbuch zum Röhren-Codex 1948/49   
 
2d4bmullard1.jpg
2D4B: Colección propia
Marcelino Iniesta Fernandez

 
152.png
2D4B: Telefunken Werkstattbuch
Wolfgang Bauer

 
2d4b_reduit_doc.png
2D4B: Babani - International Radio-tube encyclopaedia
Patrice Zeissloff


from Just Qvigstad

Usage in Models 6= 1938

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):6


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