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Tube Database (7,341 tube types · 1,270 archive entries)

Pre (2,630 tube types), Other (2,603 tube types), Power (1,292 tube types), Rectifier (816 tube types)
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Tube-number record

8227

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8227 is a tube type in the TubeDatabase archive (class: Beam Power Tube). Recorded specifications: brand RCA, year 1964, construction Beam tetrode / beam power, base Metal, socket Coaxial, maximum plate voltage 4000 V, and maximum plate dissipation 125 W. The archive does not yet hold a photographed example of this type.

BrandRCA
ClassBeam Power Tube
BaseCoaxial
Filament6.3 V @ 3200 mA

Construction

Primary TypeBeam tetrode / beam power
EnvelopeCeramic-Metal (Cermolox)
Base MaterialMetal
Sections1

Filament / Heater

MaterialMatrix-Type, Oxide Coated
Warm-up Time60s

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Cathode-drive pulsed rf amplifier (Pulsed G2)4000 V———30 mA
Cathode-drive pulsed rf amplifier (Pulsed Plate & G2)7000 V———30 mA

Application Notes

For Pulsed RF Amplifier Service in Compact Aircraft, Mobile, and Stationary Equipment in the UHF Frequency Range.

Filters

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Manufacturers

Brands

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    Heater NotesMinimum heating time 60 seconds

    Absolute Maximum Ratings

    Plate Voltage4000 V
    Plate Dissipation125 W
    Grid 2 Voltage1000 V
    Grid 1 Voltage-200 V
    Cathode Current6000 mA

    Audio Performance

    Key Features
    • CERMOLOX®
    • Forced-air cooled
    • Integral radiator
    • Matrix-type cathode
    • High gain-bandwidth products