RCA 8121 Beam Power Vacuum Tube 68-43 The RCA 8121 is a high-performance, air-cooled beam power vacuum tube designed for a variety of RF applications. Its robust ceramic-metal construction ensures durability and reliability, making it suitable for both mobile and fixed equipment. Key Features Coaxial-Electrode Structure: Enhances performance by minimizing lead inductance and capacitance. Ceramic-Metal Seals: Provides superior thermal stability and mechanical strength. Unipotential Cathode: Ensures consistent electron emission for reliable operation. Full Ratings up to 500 MHz: Capable of delivering optimal performance across a wide frequency range. Forced-Air Cooling: Maintains optimal operating temperatures, enhancing longevity and performance. Performance Specifications RF Power Amplifier: Delivers 170 Watts PEP output at 30 MHz. Oscillator and Regulator: Provides 235 Watts CW output at 470 MHz. Distributed Amplifier: Suitable for applications requiring consistent power output across various frequencies. Linear RF Power Amplifier: Ideal for amplifying RF signals with minimal distortion. Technical Specifications Filament Voltage: 13.5 Volts Filament Current: 1.3 Amperes Maximum Plate Voltage: 1500 Volts Maximum Plate Dissipation: 35 Watts Base: Large-Wafer Elevenar 11-Pin with Ring The RCA 8121 is a versatile and reliable choice for professionals seeking a high-quality beam power tube for RF applications. Its advanced design and robust construction make it a valuable component in various electronic systems.