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13M4U

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ID = 6407
       
Country:
Argentina
Brand: Philips Argentina, FAPESA, Miniwatt tubes; Buenos Aires
Tube type:  Mag. Eye, 2 ranges, 2 shadow angles   Indication 
Identical to 13M4U = UM4

Base Octal (Int.Octal, IO) K8A, USA 1935 (Codex=V)
Was used by Radio/TV-reception etc.
Filament Vf 12.6 Volts / If 0.1 Ampere / Indirect / Specified voltage AND current AC/DC
Information source Taschenbuch zum Röhren-Codex 1948/49   

13m4u_applic.png
13M4U: Personal file
Antonio Rabitti

423.png 13M4U: Telefunken Werkstattbuch
Wolfgang Bauer


Just Qvigstad
13m4u_chart.png
13M4U: Universal Vademecum 1960
Aldo Canepa

Collection of

 
13m4u.jpg

13M4U
 

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