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W30

Information - Help 
ID = 10448
       
Country:
Great Britain (UK)
Brand: MO Valve Co. Ltd.; GB
Tube type:  Vacuum Pentode   RF/IF-Stage   Controlling (mu) 
Identical to W30
Similar Tubes
Multiple differences or of other kind:
  E993

Base British-7-Pin, old (M7A) (Codex=Nc) Top contact with a cap.
Was used by Radio/TV-reception etc.
Filament Vf 13 Volts / If 0.3 Ampere / Indirect / Parallel / series AC/DC
Information source Taschenbuch zum Röhren-Codex 1948/49   
 
w30_20r.jpg
W30: Collection JR
Jacob Roschy

 
158_16.png
W30: Telefunken Werkstattbuch
Wolfgang Bauer

 
w30_catkin_1.png
W30: ZP
Patrice Zeissloff


from Just Qvigstad

Usage in Models 1= 1933 ; 18= 1934 ; 1= 1935? ; 5= 1935 ; 1= 1936??

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):26


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