The 4CX300A/8167 is a compact power tetrode having a maximum plate dissipation rating of 300 watts. The ceramic/metal construction and the internally utilized electrode structure combine to make the 4CX300A/8167 especially durable and free from mechanically induced noise under conditions of severe acceleration caused by shock or vibration. 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 Watts 12 Watts 2 Watts 500 MHz 4.8 Oxide Coated 6.0 Volts 2.9 Amps Grounded Cathode 29.0 pf 4.0 pf .04 pf ----- pf --- pf --- pf Forced Air Special, Breechblock SK-700 SK-606 --2.50 in; 63.50 mm 1.64 in; 41.60 mm 1.64 oz; 113 gm T ypical Operation Plate Screen Voltage Voltage (Volts) (Volts) Plate Current (Amps) Drive Output Power Power (Watts) (kiloWatts) C RF Amplifier 2,000 0.25 2,000 250 0.25 2.9 0.390 C RF amplifier at 500 MHz 2,000 0.25 2,000 250 0.25 --- 0.225 C RF amplifier plate modulated 1,500 0.20 1,500 250 0.20 1.7 0.235 AB1 RF linear amplifier 2,500 0.25 2,500 350 0.25 --- 0.400 AB1 RF linear amplifier (AM service) 2,500 0.25 2,500 350 0.15 --- 0.85 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 | 4CX300A/ 8167 CPI | 4CW50,000J 4CX300A/8167