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994V

Country:  Great Britain (UK)      Brand:  Mullard Radio Valve Co. Ltd.;  
  Tube type:  Triode, vacuum   Audio Frequency 
Tube ID = 3001
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Identical to 994V

Base Europe 5-Pin (O5A, B5) (Codex=F)
Filament Vf 4 Volts / If: 1.2 Ampere / -: Indirect /
Description High impedance triode.
Röhren-Codex is wrong. Heater current is 0.65A (Manufacturers data and actual test data)
Typical Operating data Va =200; Ia =1.35mA; Ra =35k; gm =3.6. 
Literature - - Manufacturers Literature   
Taschenbuch zum Röhren-Codex 1948/49   

994v_top.jpg
994V: RFJ
Roy Johnson

 
994v_so.png
994V: rtt
Michael Schlör

 
Usage in Models   2= 1933 ; 1= 1934
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):   3

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