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CAT2/1

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BrandMarconi
ClassTransmitting Triode
BaseWater jacket flange

Construction

Primary TypeTriode
EnvelopeMetal/Water-cooled
Base MaterialMetal
SectionsSingle

Filament / Heater

MaterialPure Tungsten

Absolute Maximum Ratings

Plate Voltage10000 V
Plate Dissipation20000 W

Audio Performance

Key Features
  • Water-cooled anode
  • Pure tungsten filament
  • VHF operation up to 100 Mc/s
  • Forced air cooling for seals

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
HF Power Amplifier Class C Telegraphy10000V200001050215600mA

Application Notes

Anode voltage must be reduced at high frequencies: 100% at 50 Mc/s, 68% at 75 Mc/s, and 60% at 100 Mc/s. Filament voltage should be reduced to half during standby periods longer than 5 minutes.

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