Figure 13-8, Phase III Received Power therefore, was devised to prove phase control concepts using 1 kW driver klystrons that later would be incorporated as a driver in an amplitron configuration for Phases II and III. An alternative approach suggested is to use available oven magnetrons (~1 kW) that would be configured with external rf equipment such as a circulator to simulate the amplitron’s behavior. This may be a reasonably economical approach and at the same time may provide an early demonstration of phase control behavior with many converters in cascade as proposed for the MPTS. The magnetron is much more phase sensitive to input and environmental changes than the proposed amplitron will be, but perhaps this might be turned to advantage in showing how individual converter phase can be controlled, a feature that the MPTS may need for the final amplitron design. It is recommended that this alternative be explored further in preparation for any ground test procurement that is in advance of amplitron availability.
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