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) a b rf linear amplifer 5,500 0.8 4,000 --- .562 53 1.6 the 3CX1200D7/yu-121 is a high-mu, forced air cooled, rugged, ceramic/metal power triode in - tended for use as a grounded grid, zero bias class ab2 amplifer. 3 cx 1200d7/ yu -121 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. c ha r acte r istics plate dissipation (max.) 1,200 watts screen dissipation (max.) --- grid dissipation (max.) 50 watts frequency for max. rating (cw) 110 mhz amplifcation factor 200 filament/cathode thoriated tungsten voltage 6.3 volts current 25.0 amps capacitance grounded cathode input 17.6 pf output 0.57 pf feedthrough 9.7 pf capacitance --- input --- pf output --- pf feedthrough --- pf cooling forced air base 5 pin special air socket sk-410 air chimney sk-446 boiler --- length 5.0 in; 12.7 cm diameter 3.5 in; 8.9 cm weight 2.36 lb ; 1.07 kg cpi | 3c x 1200d7/ yu -121
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