Description
The GU-74B (4CX800A) Svetlana tetrode is used in wide-band non-tunable amplifiers and for single-sideband power amplification in stationary and mobile RF equipment. It is useful at full ratings through 250MHz. GU74B (4CX800A) Ceramic Power Tetrodes are high performance ceramic/metal tetrodes with a plate dissipation rating of 800 watts.The performance characteristics of the 4CX800A allow its use as a high gain grid-driven RF amplifier or as used in grounded grid service.
Technical specifications:
- Cathode type: oxide, indirect heating
- Application field: power amplification in broadcasting and SSB equipment
- Brief application: amplification
- Envelope: metal-ceramic
- Cooling method: forced air
- Forced air cooling of at least 35m³/h.
- Dimensions: 90 x 71mm
- Filament voltage: 12.6V
- Filament current: 3.3 – 3.9A
- Mutual conductance: 26 to 38mA/V
- Output power: 0.6 kW
- Maximum anode voltage: 2kV/4kV in peak
- Maximum operating frequency: 150MHz
Durability is not less than 2000h.
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