FPS-85 TUBE IMPROVEMENT PROGRAM 4CPX250K

Abstract

A production refinement program for improving the performance, reliability and life of the tube type 4CPX250K was conducted. The objective set for this program was to be able to produce a tube that would operate in the radar set AN/FPS-85 for a minimum of 4000 hours with a maximum of 10 arcs, and a power decrease of not more than 3db during that time. The investigation included mechanical and electrical aspects, as well as a cathode investigation, and a computer analysis of cathode current density as a function of the electrode alignment. Processing procedures and exhaust schedules were also investigated. As a result of this contract eight tubes in the power-gain test equipment have been operating over 2000 hours satisfactorily. Conclusions regarding methods of improving the 4CPX250K are made. These improvements have been implemented into the tube design. Recommendations for further action are made.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1967
Accession Number
AD0828569

Entities

People

  • Maurice L. Mullin
  • Robert D. Culbertson

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Chemical Reactions
  • Chemistry
  • Construction
  • Dielectric Gases
  • Electron Beams
  • Energy
  • Fabrication
  • Hydroxides
  • Life Tests
  • Manufacturing
  • Materials
  • Measurement
  • Production Engineering
  • Space Charge
  • Test And Evaluation
  • Test Equipment
  • Tungsten

Readers

  • Electronics Engineering
  • Radar Systems Engineering.