The chief objective for use of Recovery Act funds is to procure four scaled Kazakov windows and mode converters for the Yale Ka-band magnicon. This should result in increased output power, due to lower insertion loss of the new windows, and to no further need for arcane adjustment strategies now in practice for avoidance of spurious magnicon modes; such strategies are believed to limit the output power at the design frequency to less than can otherwise be achieved. This objective will be met in a three-stage plan. First, is to engage Dr. Kazakov as a consulting physicist to scale and optimize his window and mode converter designs from X- to Ka-band. Second, is to engage Mr. A. Didenko as a consulting design engineer to generate shop drawings for the windows and mode converters; and to have these components built. Third, is to engage research physicist Professor E.V. Kozyrev, a renowned magnicon specialist, to visit Yale for six months after installation of the windows and mode converters, to find the pathway through the multi-faceted experimental parameter space towards optimized operation of the magnicon, with anticipated higher output power. Assistance to these specialists will be provided, at no additional cost to the grant, by Yale research staff members Dr. M.A. LaPointe and Dr. Y. Jiang. Dr. J.L. Hirshfield will serve as principal investigator (at no cost to this grant) to supervise and coordinate the activities. This project is expected to be completed within one year following approval by DoE, and is not expected to lead to any follow-on costs.