4CX3000A/8169 - 3000 W Radial Beam Power Tetrode

Penta Labs is proud to manufacture the 4CX3000A/8169 tetrode electron tube, a high-performance electron tube designed for demanding audio and radio frequency applications. Designed and engineered in California, this tube delivers exceptional power and linearity, making it ideal for a wide range of uses.

Key Features:

• High Power Output: Achieve a maximum plate dissipation of 3,500W, enabling robust performance in demanding applications.
• Low Intermodulation Distortion: Specifically designed for Class AB1 linear amplification, this tube excels in single sideband service due to its exceptionally low intermodulation distortion.
• Guaranteed Performance: Each 4CX3000A/8169 undergoes rigorous testing to ensure it meets stringent performance standards, including a minimum output of 5300 watts in Class AB1 service with 3rd order IM distortion at least 32 dB down.
• Versatile Operation: Suitable for use in Class AB1, Class C, and plate-modulated radio frequency power amplifier circuits.
• Rugged Construction: Built with a thoriated tungsten filament/cathode for long life and reliability.

4CX3000A Electron Tube Specifications:

• Maximum Plate Dissipation: 3,500 W
• Maximum Screen Dissipation: 175 W
• Maximum Grid Dissipation: 50 W
• Frequency for Max Rating (CW): 150 MHz
• Amplification Factor: 5.5
• Filament/Cathode: Thoriated Tungsten
• Filament Voltage: 9.0 V
• Filament Current: 41.5 A
• Input Capacitance (Grounded Cathode): 130 pF
• Output Capacitance (Grounded Cathode): 12.5 pF
• Feedthrough Capacitance (Grounded Cathode): 1.0 pF
• Input Capacitance (Grounded Grid): 61.0 pF
• Output Capacitance (Grounded Grid): 12.5 pF
• Feedthrough Capacitance (Grounded Grid): 0.1 pF
• Cooling: Forced Air
• Base: Special, breechblock
• Air Socket: SK-1400
• Air Chimney: SK-1406
• Length: 7.90 in / 200.70 mm
• Diameter: 4.63 in / 117.60 mm
• Weight: 5.5 lbs / 2.5 kg