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HF121 Info
Country:  France      Brand:  Mazda France = tubes (see also Mazda GB) 
  Tube type:  PENTODE   RF/IF-Stage   Controlling (mu) 
Tube ID = 18542
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Identical to HF121 = UF41

Base Rimlock base B8A
Was used by Radio/TV-reception etc.
Filament -: Indirect / -: Parallel / series AC/DC / If: 0.1 Ampere / Vf 12.6 Volts /
Literature Röhren-Taschen-Tabelle 14.A, (Franzis RTT)   
  hf121.gif
  ficha de valvulas
Getulio Jimenez-Gomez
hf121_uf41.jpg
collection JR
Jacob Roschy

 
ri3_g_1.gif
RTT Schwandt
Günther Stabe

 
No further Information for

HF121    

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