for additional information on cpi mpp products contact: cpi mpp, helix twt operation - 811 hansen way, palo alto, ca 94303-0750 phone: 650-846-3900, fax: 650-494-8779, email: marketing@mpp.cpii.com , www.cpii.com/mpp 750 w, cw high efficiency helix twt series, 12.75 ghz to 14.50 ghz, coaxial input, waveguide output, and conduction cooled . custom configurations are also available. these variations in the performance and configuration include: mechanical configuration, electrical and rf connections, & dual stage depressed collector. the values listed above represent specified limits for the pro duct 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. features ? 750 watts ? coaxial input ? waveguide output ? weight: 9.5 lbs. max ? conduction cooled ? dual stage collector operating parameters filament voltage filament current helix voltage helix current collector voltage 1 collector current 1 units: vdc a kv ma % ma maximum: 6.4 1.6 12.5 10. 0 51.0 30 dc 320 rf minimum: 6.2 1.0 11.8 49.0 typical: 6.3 1.4 12.2 3. 0 50.0 17 dc 215 rf collector voltage 2 collector current 2 heater warm- up time drive power baseplate temp. prime power load vswr units: % ma minutes dbm c watts vswr maximum: 27.0 420.0 18 115 2200 max 1.3:1 minimum: 25.0 3.0 -30 typical: 26.0 410 dc 195 rf 3.0 10 85 2000 1.2:1 model number frequency power output (ghz) (min.) VTU-6397T3a 12.75 ? 14.5 750 w VTU-6397T3 13.75 ? 14.5 750 w
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