The 3CPW300,000A/9008 is a water-cooled power tetrode intended for use as a pulse modulator or in pulse regulator service. The tube is rated for 100 kVdc holdoff in a protective atmosphere, with a 90 amperes pulse cathode rating during conduction and a 300 kW anode dissipation rating (average age during the pulse). Peak anode current capability in excess of 150 amperes for short pulse operation is practical. 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) 300,000 Watts 3,500 Watts 1,500 Watts --- MHz 4.5 Thoriated Tungsten 12.0 Volts 660 Amps Grounded Cathode 770 pf 122 pf 4.0 pf ----- pf --- pf --- pf Water and Forced Air Special ------28.8 in; 73.15 cm 12.0 in; 30.48 cm 98 lb; 44.5 kg T ypical Operation Plate Screen Voltage Voltage (Volts) (Volts) Plate Current (Amps) Drive Output Power Power (Watts) (kiloWatts) --- Switch tube (maximum regulation range 20 Kv) 100,000 90 --- --- --- --- --- --- Pulse modulator 100,000 90 83,000 1,000 80 --- 6.4 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 | 4CPW300,000A/ 9008 CPI | 4CW50,000J 4CPW300,000A/9008