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ID = 15768
Great Britain (UK)
Brand: Mullard Radio Valve Co. Ltd.;
Developer: Mullard Radio Valve Co. Ltd.;  
Tube type:  Triode, vacuum   Power/Output 
Identical to DO75

Filament Vf 10 Volts / If 2 Ampere / Direct /
Description "The DO75 operates at 1000 volts HT and dissipates 75 watts. Used as an output valve it gives a maximum undistorted output of 18,000 milliwatts with an optimum load of approximately 6,000 ohms. It is suitable for use in powerful public address equipments and "Talkie" apparatus. As a modulator it is capable of modulating fully a DO40 or DO40A valve." Mullard.

Pa <75W, Va < 1000; Ra 2000 ohms, 6mA/V


Literature Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   Advertisement, Wireless Engineer, April 1932

DO75: Manufacturer's Data
Roy Johnson


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