Tube-number record
F-631-A
0 archive entries
F-631-A is a tube type in the TubeDatabase archive (class: Power Triode). Recorded specifications: brand Federal Telephone and Radio Company, year 1953, construction Triode, and maximum plate dissipation 25000 W. The archive does not yet hold a photographed example of this type.
BrandFederal Telephone and Radio Company
ClassPower Triode
Construction
Primary TypeTriode
EnvelopeAnode is water-cooled
Sections1
Filament / Heater
Materialpure tungsten
Absolute Maximum Ratings
Plate Dissipation25000 W
Cathode Current12500 mA
Audio Performance
Key Features
- Water-cooled anode
- Pure tungsten filament
- High power output
- Radio-frequency power amplifier
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| RF Power Amplifier and Oscillator | — | — | — | 40 | 750 mA |
Application Notes
Maximum ratings apply up to 3 megacycles, with operation permissible up to 20 megacycles at reduced rating. For further Maximum Ratings and Characteristic Curves, see Type F-110-X.
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