The 4CX250B/7203 has a maximum plate dissipation rating of 250 watts and a maximum input power rating of 500 watts. The 4CX250B/7203 is designed to operate with a heater voltage of 6.0 volts. 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) 250 Watts 12 Watts 2 Watts 500 MHz 5 Oxide Coated 6.0 Volts 2.6 Amps Grounded Cathode 15.7 pf 4.5 pf .04 pf Grounded Grid 13.0 pf 4.5 pf .01 pf Forced Air 9 Pin Special SK-600A SK-606 --2.46 in; 62.50 mm 1.64 in; 41.70 mm 4 oz; 113 gm T ypical Operation Plate Screen Voltage Voltage (Volts) (Volts) Plate Current (Amps) Drive Output Power Power (Watts) (kiloWatts) C RF amplifier up to 175 MHz 2,000 0.25 2,000 300 .250 2.9 0.390 C RF amplifier plate modulated up to 175 MHz 1,500 0.25 1,500 250 .200 1.7 0.235 AB1 RF linear amplifier up to 175 MHz 2,000 0.25 2,000 350 0.25 --- 0.300 AB1 RF linear amplifier (AM service) up to 175 MHz 2,000 0.25 2,000 350 0.15 --- 0.65 AB1 AF amplifier or modulator 2,000 0.25 2,000 350 0.50 --- 0.600 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 Operation, 607 Hansen Way, Palo Alto, CA 94303 telephone : 1(800) 414-8823. fax : (650) 592-9988 | email : [email protected] CPI | 4CX250B/7203 CPI | 4CW50,000J 4CX250B/7203