maxi m u m ratings t ypical ope r ati o n c lass of t ype of s ervice p late p late p late s creen p late drive output operation voltage c urrent voltage voltage c urrent p ower p ower (volts) ( a mps) (volts) (volts) ( a mps) (watts) (kilowatts) c rf industrial oscillator or amplifer 9,000 3.0 8,000 --- 2.75 710 15.0 the 3CW7000H3/y-842a is a water cooled, ce - ramic/metal, medium-mu power triode designed primarily for use in industrial radio frequency heating services. its water cooled anode is con - servatively rated at 7 kw of plate dissipation with low water fow and pressure drop. the tube is a version of the air cooled 3cx4500f3 and is recom - mended for industrial applications where reserve anode dissipation is required. input of 25 kw is permissible up to 75 mhz. plentiful reserve emis - sion is available from its 546 watt flament. the 3 c w7000h3/ y -842 a cpi | 4 c w50,000j 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 : powergrid@cpii.com the values listed above represent specifed limits for the product and are subject to change. the data should be used for basic information only. formal, controlled specifcations may be obtained from cpi for use in equipment design. ch a r acte r istics plate dissipation (max.) 7,000 watts screen dissipation (max.) --- grid dissipation (max.) 300 watts frequency for max. rating (cw) 75 mhz amplifcation factor 22 filament/cathode thoriated tungsten voltage 7.0 volts current 78.0 amps capacitance grounded cathode input 35.0 pf output 0.9 pf feedthrough 20 pf capacitance --- input --- pf output --- pf feedthrough --- pf cooling water and forced air base flexible leads air socket --- air chimney --- boiler --- length 12.56 in; 31.9 cm diameter 3.63 in; 9.22 cm weight 4.4 lb; 2.0 kg cpi | 3CW7000H3/ y -842 a grid structure is rated at 300 watts, making this tube an excellent choice for industrial service.
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