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ID = 57054
United States of America (USA)
Brand: Common type USA tube/semicond.
Developer: Raytheon Mfg. Co.; Cambridge, MA 
Tube type:  Transmitting Tetrode, air cooled   Text 
Identical to RK6D22
First Source (s)
1947 : -- Collector info (Sammler) Lud Sibley

Was used by Transmittertube (Radio)
Filament Vf 5 Volts / If 28.5 Ampere / Direct
Description Convection air cooled tetrode, intended for use as RF-AF power amplifier. Jumbo 4-pin bayonet base, top contact, plus G1 and G2 side contacts. Thoriated-tungsten filament.
450W plate dissipation, 3500V at 500mA max anode input, -250V G1 voltage, 500V G2. Requires as low as 22W drive power to deliver 1000W. 
Dimensions (WHD)
incl. pins / tip
x 318 x 132 mm / x 12.52 x 5.20 inch
Information source - - Manufacturers Literature   


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