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509AX

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ID = 13572
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Triode, vacuum   Audio Frequency 
Identical to 509AX = CK509AX

Base Subminiatur (wire-ends, flat) B5A (Codex=sp)
Filament Vf 0.6 Volts / If 0.03 Ampere / Direct
Information source Taschenbuch zum Röhren-Codex 1948/49   

509ax_sock.png 509AX: Tabu Röhren-Codex, 1948
Anonymous 15 Collector

More ...

Just Qvigstad
509_dat.png
509AX: Röhrenhandbuch 1995
Heinz Höger

 

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