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9C22

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BrandRCA
ClassPower Triode
BaseFlange/Terminal

Construction

Primary TypeTriode
EnvelopeGlass-Metal
Base MaterialMetal
Sections1

Filament / Heater

MaterialMultistrand Tungsten

Absolute Maximum Ratings

Plate Voltage17000 V
Plate Dissipation20000 W
Grid 1 Voltage-2000 V
Cathode Current40000 mA

Audio Performance

Power Output61000 W
Key Features
  • Forced-air-cooled
  • Multistrand Tungsten filament
  • Integral Radiator

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Class C Telegraphy17000V--415000mA
Class C Telephony12500V--413500mA

Application Notes

The specified air flow at a pressure of 2.2 inches of water should be delivered by a blower vertically upward through the radiator before and during the application of any voltages.

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