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

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Tube-number record

RD8XH

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BrandTESLA
ClassTransmitting triode

Construction

Primary TypeTriode
EnvelopeLead glass and OFHC copper
Base MaterialCopper radiator
Sections1

Filament / Heater

Materialthoriated tungsten

Absolute Maximum Ratings

Plate Voltage12000 V
Plate Dissipation8000 W

Audio Performance

Key Features
  • Air-cooled
  • Direct heating
  • Parallel feed cathode
  • OFHC copper anode
  • Vertical mounting position

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Transmitting Triode—7400520038.5—

Application Notes

Used as an oscillator or RF power amplifier for broadcast transmitters at frequencies up to 3 MHz.

Datasheets

Datasheet: RD8XH.pdf

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Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.

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