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RD3XL vacuum tube outline illustration

Tube-number record

RD3XL

0 archive entries

RD3XL is a tube type in the TubeDatabase archive (class: Coaxial transmitting triode). Recorded specifications: brand TESLA, construction Triode, base Copper/Aluminum, socket Coaxial, maximum plate voltage 20000 V, and maximum plate dissipation 3000 W. The archive does not yet hold a photographed example of this type.

BrandTESLA
ClassCoaxial transmitting triode
BaseCoaxial

Construction

Primary TypeTriode
EnvelopeMetal-glass
Base MaterialCopper/Aluminum
SectionsSingle

Filament / Heater

Materialthoriated tungsten

Absolute Maximum Ratings

Plate Voltage20000 V
Plate Dissipation3000 W

Audio Performance

Key Features
  • Air-cooled
  • Coaxial electrodes
  • OFHC copper anode
  • Aluminum radiator
  • Forced air cooling

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Characteristic Data—40000—75—

Application Notes

The tube TESLA RD3XL is an air-cooled triode of 3 kW anode dissipation, intended for use as a recuperative amplifier, oscillator or RF power amplifier in SW transmitters especially for broadcasting.

Datasheets

Datasheet: RD3XL.pdf

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

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