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ID = 13100
Brand: Mazda (tubes), Mazda-Belvu, Compagnie des Lampes; Paris
Tube type:  LOCKED OFF PART (CODE 9) - see in Notes 
Identical to T.M.B.G. = TM-BG
Similar Tubes
Multiple differences or of other kind:

Base French Bigrille 5 pin (D)

The type is written in different ways like T.M.B.G. TM-BG …
French military version of the A441N 5 pin with metal shell

Text in other languages (may differ)
Information source Taschenbuch zum Röhren-Codex 1948/49   

tubesockel_klein_bigrillem_1.gif T.M.B.G.: W.Holtmann
Wolfgang Holtmann

Collection of



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