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ID = 15634
Great Britain (UK)
Brand: Common type Great Britain tube/semicond.
Developer: Standard Telephones and Cables Ltd. (STC); London, Foots Cray 
Tube type:  Triode, vacuum   UHF 
Identical to CV88 = S28A = 3A/148J
Predecessor Tubes CV16  

Was used by Radar
Filament Vf 6.3 Volts / If 0.4 Ampere / Indirect / Specified voltage AC/DC

UHF triode derived from CV16 for use as grounded grid amplifier up to 600MHz. Disc seal body with coaxial line from the bottom for cathode and heater. Tubular copper anode. Usable up to about 1GHz.

350V, 2W max anode ratings; mu 100, 5mA/V.

Information source Taschenbuch zum Röhren-Codex 1948/49   
-- Original-techn. papers.   

CV88: Manufacturer's Literature
Emilio Ciardiello

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