Tube-number record
F-7820
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F-7820 is a tube type in the TubeDatabase archive (class: Power Triode). Recorded specifications: brand ITT Components Division, construction Triode, maximum plate voltage 8000 V, and maximum plate dissipation 4300 W. The archive does not yet hold a photographed example of this type.
BrandITT Components Division
ClassPower Triode
Construction
Primary TypeTriode
EnvelopeGlass
SectionsSingle
Filament / Heater
MaterialThoriated Tungsten
Absolute Maximum Ratings
Plate Voltage8000 V
Plate Dissipation4300 W
Cathode Current5000 mA
Audio Performance
Power Output11000 W
Key Features
- Vibration resistant
- Shock resistant
- Air-cooled anode
- Thoriated-tungsten filament
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class AB1 Modulator (Two Tubes) | 3750 V | — | — | 6 | 2800 mA |
| Class AB1 Modulator (Two Tubes) | 5000 V | — | — | 6 | 2600 mA |
| Class AB1 Modulator (Two Tubes) | 7000 V | — | — | 6 | 2550 mA |
Application Notes
Specifically suitable for Class AB modulator circuits under conditions of vibration or shock.
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