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5D23

Information - Help 
ID = 21359
       
Country:
United States of America (USA)
Brand: Raytheon Mfg. Co.; Cambridge, MA
Tube type:  Transmitting Tetrode, air cooled 
Identical to 5D23 = RK65

Was used by Transmittertube (Radio)
Filament Vf 5 Volts / If 14 Ampere / Direct
Description

Power tetrode, thoriated tungsten filament, tantalum plate and grids, hard glass bulb. 215W anode dissipation; up to 60MHz full ratings operation, up to 140MHz with reduced ratings and forced air cooling. Plate to the top cap and grids to two side contacts; Jumbo 4-pin bayonet base.
Plate shows a yellowish-red color when operated at maximum ratings.
Raytheon only known manufacturer.

 
Information source Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   
Tube Lore (I)
 
5d23_rk65_1.jpg
5D23: Private collection
Emilio Ciardiello

 
5d23_so.png
5D23: ARRL Handbook 1972
Michael Schlör

 
5d23rk65_01_1.png
5D23: Manufacturer's Literature
Emilio Ciardiello



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