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4D23

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ID = 21349
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Developer: Lewis & Kaufman Ltd, Los Gatos, CA 
Tube type:  Transmitting Tetrode, air cooled   VHF 
Identical to 4D23

Base TRANSMITTING & Power-TUBES/VALVES in gen Top contact with a cap.
Filament Vf 5 Volts / If 7.5 Ampere / Direct
Description Giant 5-pin ventilated base. Thoriated-tungsten filament.
200W plate dissipation. 400W typical power out at 2000V anode supply. 120MHz full ratings.
Registered to Pacific Electronics, Los Gatos, CA, successor of Lewis Electronics and later Lewis & Kaufman. 
Information source Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   

4d23_sock.png 4D23: Tabu Röhren-Codex, 1948
Anonymous 15 Collector

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