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ID = 14921
Brand: Philips Argentina, FAPESA, Miniwatt tubes; Buenos Aires
Tube type:  Double Diode-Triode   Audio Frequency 
Identical to UBC1
Similar Tubes
Multiple differences or of other kind:

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

See also: Mysterious P-, O- and U- tube-series

Information source Taschenbuch zum Röhren-Codex 1948/49   

ubc1culotbiss.png UBC1
Patrice Zeissloff

Just Qvigstad
UBC1: Röhren-Vademekum 1947
Helmut Weigl

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