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6B8G

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BrandBrimar
ClassDouble Diode Pentode
BaseOctal
Filament6.3V @ 300mA

Construction

Primary TypeDouble Diode Pentode
EnvelopeGlass (ST-Shape)
SectionsDouble diode and semi-vari-mu pentode

Filament / Heater

Absolute Maximum Ratings

Plate Voltage300 V
Plate Dissipation2.25 W
Grid 2 Voltage125 V

Audio Performance

Key Features
  • Semi-vari-mu characteristics
  • Multiple valve for detector and amplifier use

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Pentode Section100V950300000-5.8mA
Pentode Section180V8401000000-3.4mA
Pentode Section250V1000800000-6mA
Pentode Section250V1120600000-9mA

Application Notes

The pentode sections allow A.V.C. bias application without appreciable distortion.

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