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RD 12 TF

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BrandLorenz
ClassTransmitting Triode
Filament12.6V @ 600mA

Construction

Primary TypeTriode
EnvelopeGlass
SectionsSingle

Filament / Heater

Heater NotesIndirectly heated oxide cathode; permissible heater range 10.8 - 14.5 V.

Absolute Maximum Ratings

Plate Voltage900 V
Plate Dissipation75 W
Cathode Current250 mA
H-C Voltage75 V

Audio Performance

Key Features
  • 75 Watt Power Triode
  • UHF/Decimeter Wave Application
  • Indirectly Heated
  • Oxide Cathode

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
CW 50cm450V17000294150180mA
CW 55cm500V17000294150180mA
CW 62cm550V17000294150180mA
CW >3m800V17000294150180mA

Application Notes

Tube temperature must not exceed 200°C. Cooling with a sharp air stream of 100 l/min near the feedthroughs is required.

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