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| cpi | 4cx20,000c cpi|4cW50,000J 4cx20,000c The 4CX20,000C is recommended for use in audio or RF applications. It features an internal structure having low RF losses, permitting operation at full ratings to 110 MHz. This tube has a gain of 20 dB in FM broadcast service, with power output of 40kW. It is also recommended for RF linear amplifier service. The anode is rated for 20 kW of dissipation and incorporates a highly efficient cooler with ripple fins, which significantly reduces air pressure and flow requirements and produces a low acoustical noise. 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 20,000 Watts 450 Watts 200 Watts 110 MHz 6.7 Thoriated Tungsten 10.0 Volts 140 Amps Grounded Cathode 193 pf 22.4 pf 0.6 pf Grounded Grid 90 pf 22.9 pf .08 pf Forced Air Special, Coaxial SK-360 SK-326 --9.84 in; 249.90 mm 8.86 in; 225.04 mm 20.0 lb; 9.06 kg typeofservice RFpoweramplifier RFpoweramplifier aFamplifierormodulator MaxiMuMRatings plate Voltage (Volts) 12,500 12,500 12,500 plate current (amps) 5.0 5.0 6.0 ypicalOpeRatiOn t plate current (amps) 4.01 4.35 9.20 Drive Output power power (Watts) (kiloWatts) 26 400 --- 28.2 40.0 44.0 classof Operation c c aB1 plate screen Voltage Voltage (Volts) (Volts) 9,000 11,600 7,800 900 1,000 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 Operation, 607 Hansen Way, Palo Alto, CA 94303 telephone: 1(800) 414-8823. fax: (650) 592-9988 | email: powergrid@cpii.com |
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