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ID = 47270
Tube type:  Double Triode   VHF 
Identical to CV811 = 1291 = VT-182 = 3B7

Base Loctal-8, B8G (Sylvania, 1938)
Was used by Military and/or Government
Filament Vf 2.8 Volts / If 0.11 Ampere / Direct / Battery =

HF transmitting tube, 5.4W total dissipation. Tipically delivers 2.8W at 25MHz and 1.4W at 125MHz as oscillator. Can be operated with both filament segments in parallel, draining 220mA at 1.4V.

Information source -- Original-techn. papers.   

1291_1.png CV811: Manufacturer's Literature
Emilio Ciardiello

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