The 4CX7500A is a compact tetrode designed to be used in VHF power amplifier service. It features a type of internal structure which results in high RF operating efficiency up to 220 MHz. A dense mesh filament is used which contributes to the high performance capability of the tube. This tube is also recommended for use as a VHF TV linear 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 Boiler Length Diameter Weight Maximum Ratings Type of Service Plate Voltage (Volts) Plate Current (Amps) 7,500 Watts 165 Watts 50 Watts 220 MHz 8.0 Thoriated Tungsten 7.0 Volts 110 Amps Grounded Cathode 145 pf 20.0 pf .53 pf Grounded Grid 74.1 pf 20.6 pf .07 pf Forced Air Special, Coaxial SK-340 --9.27 in; 235.46 mm 5.66 in; 143.76 mm 8.4 lb; 3.8 kg T ypical Operation Plate Screen Voltage Voltage (Volts) (Volts) Plate Current (Amps) Drive Output Power Power (Watts) (kiloWatts) C RF amplifier 7,500 3.0 6,500 750 2.40 130 12.1 AB1 AF linear amplifier 7,500 3.0 7,500 1,250 2.20 --- 10.0 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 Operation, 607 Hansen Way, Palo Alto, CA 94303 telephone : 1(800) 414-8823. fax : (650) 592-9988 | email : [email protected] CPI | 4CX7500A CPI | 4CW50,000J 4CX7500A