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MR3

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ID = 14524
       
Country:
Hungary
Brand: Tungsram; Budapest (see also British T.)
Tube type:  Triode, vacuum 
Identical to MR3
Similar Tubes
Differences not known by us:
  MR3D

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
Was used by Radio/TV-reception etc.
Filament Vf 3.5 Volts / If 0.06 Ampere / Direct / Battery =
Information source Taschenbuch zum Röhren-Codex 1948/49   
 
mr3_01.jpg
MR3: Collection TL
Thomas Lebeth

 
mr3_so.png
MR3: rtt
Michael Schlör

 
daten_mr3_tungsram.png
MR3: Radio Amateur 1925
Gerhard Heigl


from Just Qvigstad

Usage in Models 2= 1929

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):2


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