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TP4_Mullard

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ID = 10313
       
Country:
Great Britain (UK)
Brand: Mullard Radio Valve Co. Ltd.;
Tube type:  Triode-Pentode   Frequency converter   Controlling (mu) 
Identical to TP4_Mullard
First Source (s)
22.Nov.1935 : Wireless World (The), London (WW, 79)

Base B9 British 9-Pin (Codex=Yb) Top contact with a cap.
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 1.25 Ampere / Indirect / Specified voltage AC/DC
Description

Grid from top cap.

 
Information source History of the British Radio Valve to 1940   p. 150 & 200
Wireless World (The), London (WW, 79)   
Babani, International Radio Tube Encyclopaedia
Taschenbuch zum Röhren-Codex 1948/49

611_1.png TP4_Mullard: Telefunken Werkstattbuch
Wolfgang Bauer


Just Qvigstad
tp4_mullard_characteristics.png
TP4_Mullard: My schematic collection.
Pier Antonio Aluffi

 

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