The 4CW50,000E is characterized by low input and feedback capacitances and low internal lead inductances. A rugged mesh thoriated tungsten filament provides adequate emission over the long operating life. It is recommended for use as a Class C RF amplifier or oscillator, a Class AB RF linear amplifier, or a Class AB push-pull AF amplifier or modulator. The 4CW50,000E is also useful as a plate and screen-modulated Class C RF amplifier. Class of Operation Characteristics Plate Dissipation (Max.) Screen Dissipation (Max.) Grid Dissipation (Max.) Frequency for Max. rating (CW) Amplification Factor Filament/Cathode Voltage Current Capacitance Input Output Feedthrough Capacitance Input Output Feedthrough Cooling Base Air Socket Air Chimney Boiler Length Diameter Weight Maximum Ratings Type of Service Plate Voltage (Volts) Plate Current (Amps) 50,000 Watts 1,500 Watts 400 Watts 110 MHz 4.5 Thoriated Tungsten 12.0 Volts 215 Amps Grounded Cathode 310 pf 52.0 pf 0.7 pf Grounded Grid 140 pf 52.0 pf 0.3 pf Water and Forced Air Special Coaxial SK-2011A ----11.50 in; 292.00 mm 9.53 in; 242.00 mm 35.0 lb; 15.9 kg T ypical Operation Plate Screen Voltage Voltage (Volts) (Volts) Plate Current (Amps) Drive Output Power Power (Watts) (kiloWatts) C RF amplifier 17,500 12.0 15,000 1,500 11.5 150 137.0 C RF amplifier plate modulated 15,000 12.0 14,000 750 9.2 685 110.0 AB1 RF linear amplifier 17,500 12.0 10,000 1,800 9.1 --- 57.0 AB1 AF linear amplifier 17,500 12.0 15,000 1,250 18.6 --- 195.0 The values listed above represent specified limits for the product and are subject to change. The data should be used for basic information only. Formal, controlled specifications may be obtained from CPI for use in equipment design. For information on this and other CPI products, visit our website at: www.cpii.com, or contact: CPI MPP Division, Eimac Operations, 607 Hansen Way, Palo Alto, CA 94303 telephone : 1(800) 414-8823. fax : (650) 592-9988 | email : [email protected] CPI | 4CW50,000E CPI | 4CW50,000J 4CW50,000E