The 3CX1500A7/8877 power triode is designed for use as a cathode driven Class AB2 or Class B amplifier, in audio or RF applications including the VHF band or as a cathode driven plate modulator Class C RF amplifier. As a linear amplifier, high power gain may be obtained without sacrifice of low intermodulation distortion and high amplification factor combine to make drive requirements exceptionally low for a tube of this power capacity. 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) 1,500 Watts --25 Watts 250 MHz 200 Oxide Coated 5.0 Volts 10.5 Amps Grounded Cathode 38.5 pf 0.1 pf 10.0 pf Grounded Grid 38.5 pf 10.2 pf 0.1 pf Forced Air Special 7-Pin SK-2210 SK-2216 --4.02 in; 102.20 mm 3.38 in; 85.80 mm 1.6 lb ; 0.7 kg T ypical Operation Plate Screen Voltage Voltage (Volts) (Volts) Plate Current (Amps) Drive Output Power Power (Watts) (kiloWatts) C Cathode driven RF amplifier plate modulated at 30 MHz 3,200 0.8 2,400 --- 0.60 41 1.0 B Cathode driven RF linear amplifier at 108 MHz 4,000 1.0 4,000 --- 1.0 78 2.6 AB2 Cathode driven RF linear amplifier at 220 MHz 4,000 1.0 2,500 --- 1.0 57 1.52 AB2 Cathode driven RF linear amplifier at 30 MHz 4,000 1.0 3,500 --- 1.0 64 2,075 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 | 3cX1500A7/ 8877 CPI | 4CW50,000J 3CX1500A7/8877