The 4CX350FJ/8904 is intended for Class AB linear RF amplifier service. The tube has rugged internal construction features. The 4CX350FJ/8904 may be used as an exact replacement for the 4CX350F/8322 in most linear applications, requiring only minor circuit adjustment and retuning. The tube has improved intermodulation distortion characteristics. It contains a 26.5 volt heater, and is recommended for new equipment designs. Class of Operation AB1 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) RF linear amplifier 2,500 0.30 T ypical Operation Plate Screen Voltage Voltage (Volts) (Volts) 2,200 350 Watts 8 Watts 0 Watts 110 MHz 17 Oxide Coated 26.5 Volts 0.65 Amps Grounded Cathode 22.0 pf 5.9 pf .03 pf ----- pf --- pf --- pf Forced Air 9 Pin Special SK-600A SK-606 --2.46 in; 62.60 mm 1.64 in; 41.60 mm 4 oz; 113 gm 400 Plate Current (Amps) 0.23 Drive Output Power Power (Watts) (kiloWatts) --- 0.250 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 | 4CX350FJ/ 8904 CPI | 4CW50,000J 4CX350FJ/8904