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ID = 4434
Tube type:  Triode, vacuum   VHF   Controlling (mu) 
Identical to 4HA5 = 4HM5 = PC900
Similar Tubes
Heater different:
  2HA5 ; 2HM5 ; 3HA5 ; 3HM5 ; 6HA5 ; 6HM5 ; XC900

Base Miniatur-7-Pin-Base B7G, USA 1940
Filament Vf 4 Volts / If 0.3 Ampere / Indirect / Specified current AC/DC ~ = (Series working)
Tube prices 1 Tube prices (visible for members only)
Information source Essential Characteristics, GE 1973   
Röhren-Taschen-Tabelle, (Franzis RTT)   

mi98_g.gif 4HA5: RTT Schwandt
Günther Stabe † 19.8.20

More ...

Just Qvigstad
4HA5: RCA Tube Manual
Peter Hoddow

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