Tube-number record
RF POWER TRIODE
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ClassPower Triode
BaseSpecial / none
Construction
Primary TypeTriode
EnvelopeGlass
SectionsSingle
Filament / Heater
Materialthoriated tungsten
Absolute Maximum Ratings
Plate Voltage4000 V
Plate Dissipation450 W
Grid 1 Voltage-500 V
Cathode Current650 mA
Audio Performance
Typical THD5%
Power Output2440 W
Key Features
- Thoriated tungsten filament
- Directly heated
- High power RF triode
- Industrial oscillator use
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| RF Class C Telegraphy (Controlled) | 4000 V | 4500 | 6222 | 28 | 535 mA |
| RF Class C Anode Modulation | 3000 V | — | — | — | 450 mA |
| AF Class B Modulator (Two Tubes) | 4000 V | — | — | — |
Application Notes
In general cooling of the tube is not necessary at normal ambient temperature at frequencies below 50 MHz. Above 50 MHz, direct a low-velocity air flow on the anode seal and the bottom of the envelope.
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