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ID = 1252
Brand: Loewe-(Opta); Deutschland
Tube type:  OCTODE   Controlling (mu) 
Identical to 4M1 = AK2

Base Europe side contact P8A (Au P, 8SC) (Codex=Seo)
Filament Vf 4 Volts / If 0.6 Ampere / Indirect / Specified voltage AC/DC
Description 4M1, Bezeichnung von Loewe für die AK2. 
Information source Taschenbuch zum Röhren-Codex 1948/49   

4M1: Loewe Schautung
Anonymous 1038 Collector

25_16.png 4M1: Telefunken Werkstattbuch
Wolfgang Bauer

Just Qvigstad
4M1: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector

Usage in Models 1= 1936 ; 1= 1937 ; 1= 1938

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):3

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