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ID = 10590
United States of America (USA)
Brand: Common type USA tube/semicond.
Developer: Raytheon Mfg. Co.; Cambridge, MA 
Tube type:  Transmitting Tube, Pentode, air cooled   beam power   VHF 
Identical to 4D32 = RK4D32 = CV3543
Similar Tubes
Heater different:

Base Septar (1+6 pins) (Codex=Mci) Top contact with a cap.
Was used by Transmittertube (Radio)
Filament Vf 6.3 Volts / If 3.75 Ampere / Indirect / Parallel, (AC/DC)

All glass body with septar transmitting base. With 600 V supply, as class C amplifier, one tube can deliver 100 W RF power with 1.25 W grid drive.
Sibley gives Raytheon as only known manufacturer.
Even if the RMA registration as 4D22 dates December 1950, the attached Raytheon datasheet dates Nov. 27, 1946.

Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
57 x 131 x mm / 2.24 x 5.16 x inch
Weight 155 g / 5.47 oz
Tube prices 2 Tube prices (visible for members only)
Information source Taschenbuch zum Röhren-Codex 1948/49   ARRL 1948
- - Manufacturers Literature   
Tube Lore (I)
4D32: O.F.
Otto Frosinn

4D32: The Radio Amateurs Handbook 1963
Otto Frosinn

4D32: Manufacturer's Literature
Emilio Ciardiello

Usage in Models 1= 1946 ; 2= 1949 ; 1= 1950

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):4

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