Tube-number record
F-9C29
0 archive entries
F-9C29 is a tube type in the TubeDatabase archive (class: Power Triode). Recorded specifications: brand Federal, year 1949, construction Triode, maximum plate voltage 15000 V, and maximum plate dissipation 20000 W. The archive does not yet hold a photographed example of this type.
BrandFederal
ClassPower Triode
Construction
Primary TypeTriode
EnvelopeGlass/Metal
Sections1
Filament / Heater
Materialthoriated tungsten
Absolute Maximum Ratings
Plate Voltage15000 V
Plate Dissipation20000 W
Cathode Current45000 mA
Audio Performance
Power Output39000 W
Key Features
- Forced-air-cooled anode
- Thoriated tungsten multi-strand filament
- Heavy wall anode for uniform heat distribution
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class AB1 Modulator (Values for two tubes) | 10000 V | — | 2600 | 4.75 | 7200 mA |
| Class AB1 Modulator (Values for two tubes) | 12000 V | — | 4500 | 4.75 | 5600 mA |
Application Notes
Engineered for modulator use in Class AB circuits. Typical operation power output 39 Kilowatts for two tubes.
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