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) --- s witch t ube or pu lse modulator 20,000 18.0 20 000 1,250 18.0 --- 337.0 the 4PR60C/8252w is intended for pulse modu - lator service in circuits employing inductive or resistive loads. this tube unilaterally replaces the 715c, the 5d21 and the 4pr60b/8252. the internal structure of the tube has been strengthened to minimize the effects of shock and vibration. the 4PR60C/8252w has a maximum plate dissipation rating of 60 watts, and is cooled by radiation and convection, and delivers pulse output power in the region of 300 kw with less than one kw of pulse driving power. 4 p r60 c / 8252w cpi | 4 c w50,000j for information on this and other cpi mpp products, visit our website at: www.cpii.com , or contact: cpi microwave products division, eimac operation, 607 hansen way, palo alto, ca 94303 t e l e p h o n e : 1(800) 414-8823. f a x : (650) 592-9988 | e m a i l : 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.) 60 watts screen dissipation (max.) 8 watts grid dissipation (max.) 1 watts frequency for max. rating (cw) n/a amplifcation factor n/a filament/cathode oxide coated voltage 26.0 volts current 2.1 amps capacitance grounded cathode input 43.0 pf output 8.5 pf feedthrough 1.5 pf capacitance n/a input n/a output n/a feedthrough n/a cooling radiation and forced air base 4-pin special air socket n/a air chimney n/a boiler n/a length 6.00 in; 152.40 mm diameter 3.06 in; 77.90 mm weight 12 oz; 0.34 kg cpi | 4 p r60 c / 8252w
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