F-6691
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BrandITT
ClassPower Triode
Construction
Primary Typetriode
EnvelopeGlass/Metal Radiator
Sections1
Filament / Heater
Materialthoriated tungsten
Warm-up Time15s
Absolute Maximum Ratings
Plate Voltage15000 V
Plate Dissipation17000 W
Grid 1 Voltage-2000 V
Cathode Current40000 mA
Audio Performance
Key Features
- Thoriated tungsten filament
- Forced air cooling
- Industrial oscillator application
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Radio-Frequency Power Amplifier & Oscillator - Class C Telegraphy | 15000V | - | - | 21 | 3900mA |
| Radio-Frequency Power Amplifier & Oscillator - Class C Telegraphy | 12500V | - | - | 21 | 4250mA |
| Radio-Frequency Power Amplifier & Oscillator - Class C Telegraphy | 10000V | - | - | 21 | 4100mA |
| Radio-Frequency Power Amplifier & Oscillator - Class C Telegraphy | 7500V | - | - | 21 | 5400mA |
Application Notes
Maximum ratings apply up to 40 megacycles. Cooling air flow must be maintained to keep incoming air below 45°C. Modulation essentially negative may be used if positive peak does not exceed 115%.
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