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PZ1-75

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ID = 11927
       
Country:
Great Britain (UK)
Brand: Mullard Radio Valve Co. Ltd.;
Tube type:  Transmitting Tube, Pentode, air cooled   Power/Output 
  Ca. 1925 up to 1945 rare.
Identical to PZ1-75 = NT38 = CV1221
Similar Tubes
Normally replaceable-slightly different:
  ATP75 ; CV1371 ; PT6 ; SW75Pen ; VT144_GPO

Base SPECIAL TUBEBASE in general (Codex=Bz) Top contact with a cap.
Was used by Transmittertube (Radio)
Filament Vf 10 Volts / If 2 Ampere / Direct / Specified voltage AND current AC/DC
Description

4 pin base similar to US 50 watt transmitting tube base. 75 watts dissipation

 
Information source Taschenbuch zum Röhren-Codex 1948/49   
Babani, International Radio Tube Encyclopaedia   Pages 240 -241

pz175_sock.png PZ1-75: Tabu Röhren-Codex, 1948
Anonymous 15 Collector

 
mullard_pz175_e921.jpg

 

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