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| cpi | 4cW25,000a cpi|4cW50,000J 4cW25,000a The 4CW25,000A is a tetrode intended for use in audio or radio frequency applications. It is recommended for RF linear power amplifier service for television linear amplifier service, and as a switch tube for pulsed regulator service. 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 25,000 Watts 450 Watts 20 Watts 110 MHz 4.5 Thoriated Tungsten 6.3 Volts 160 Amps Grounded Cathode 160 pf 24.5 pf 1.5 pf Grounded Grid 67 pf 25.5 pf 0.2 pf Water and Forced Air Special Coaxial SK-300A ----12.69 in; 322.00 mm 4.75 in; 121.00 mm 13.5 lb; 6.1 kg typeofservice RFamplifier RFamplifierplatemodulated RFlinearamplifier aFamplifierormodulator MaxiMuMRatings plate Voltage (Volts) 10,000 8,000 10,000 10,000 plate current (amps) 5.0 4.0 6.0 6.0 ypicalOpeRatiOn t plate current (amps) 4.5 3.6 4.2 8.5 Drive Output power power (Watts) (kiloWatts) 220 150 --- --- 36.5 23.5 28.5 57.0 classof Operation c c aB1 aB1 plate screen Voltage Voltage (Volts) (Volts) 10,000 8,000 10,000 10,000 750 750 1,500 1,500 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. Forinformationon 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: powergrid@cpii.com |
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