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4HA5

Information - Help 
ID = 4434
       
 
   
Tube type:  Triode, vacuum   VHF   Controlling (mu) 
Identical to 4HA5 = PC900 = 4HM5
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 / Series, AC/DC
Tube prices 1 Tube prices (visible for members only)
Information source Essential Characteristics, GE 1973   
Röhren-Taschen-Tabelle, (Franzis RTT)   
 
4ha5_pc900.jpg
4HA5: Private collection
Emilio Ciardiello

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

 
4ha5_techdat01.png
4HA5: RCA Tube Manual
Peter Hoddow


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