8973 CPI | Alldatasheet
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Maxi MuM Ratings t ypical Ope RatiOn class of type of service plate p late p late s creen p late Drive Output Operation Voltage c urrent Voltage Voltage c urrent power p ower (Volts) (amps) (Volts) (Volts) (amps) (Watts) (kiloWatts) c RF amplifier 22,500 65.0 21,000 1,500 59.0 2,700 1,025.0 c RF amplifier p late Modulated 17,500 50.0 17,500 800 50.0 2,400 700.0 a B1 RF linear amplifier 22,500 110.0 20,000 1,500 45.0 --- 610.0 a B1 aF amplifier or Modulator 22,500 110.0 17,500 1,500 78.0 --- 950.0 B RF amplifier, l ong pulse, grounded g rid 1,000 000 24,500 1,750 94.2 7,140 1,770.0 The 8973 is a power tetrode designed for very high powered medium frequency or high frequen- cy broadcast service and a very low frequency communication in the half megawatt power range. The 8973 has a thoriated tungsten filament mount - ed on water-cooled supports. Large diameter coaxial terminals are used for the control grid and the RF filament terminals. Filament power and fila- ment support cooling water connections are made through special couplings with threaded clamping rings. 8973 cpi | 4cW50,000J For information on this and other CPI MPP products, visit our website at: www.cpii.com , or contact: CPI Microwave Products Division, Eimac Operation, 607 Hansen Way, Palo Alto, CA 94303 t e l e p h o n e: 1(800) 414-8823. f a x: (650) 592-9988 | e m a i l: powergrid@cpii.com 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. chaRacteRistics Plate Dissipation (Max.) 1,000 Kilowatts Screen Dissipation (Max.) 7.5 Kilowatts Grid Dissipation (Max.) 2.0 Kilowatts Frequency for Max. rating (CW) 110 MHz Amplification Factor 4.5 Filament/Cathode Thoriated Tungsten Voltage 16.3 Volts Current 600 Amps Capacitance Grounded Cathode Input 1000 pf Output 165 pf Feedthrough 5.0 pf Capacitance N/A Input N/A Output N/A Feedthrough N/A Cooling Water and Forced Air Base Special Coaxial Air Socket N/A Air Chimney N/A Boiler N/A Length 18.75 in; 476.20 mm Diameter 17.03 in; 432.60 mm Weight 153.0 lb; 69.5 kg cpi | 8973