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The RCA Direct View Storage Kinescope is a cathode ray tube capable of providing a visual display of radar information at brightness levels that permit viewing under high ambient light conditions such as occur in aircraft cockpits. The radar information may be stored at this high light level for several minutes without appreciable loss of resolution. The storage time can be controlled over a wide range--from a fraction of a second to several minutes. Under one mode of operation, the information may be caused to decay gradually over the entire display area or it may be completely removed within a fraction of a second. Another mode of operation permits removal of information along a single line of the display. In this way, the radar data may be continually erased just prior to writing new data. Other features which make the Direct View Storage Kinescope desirable as a radar indicator are its high writing-speed, good half-tone rendition and good resolution (450 line limiting resolution on a diameter).

The design of a pulsed traveling wave tube for use as a power driver for megawatt klystrons will be described. The tube will provide more than 5 kw of peak power output over a frequency range of 1.5:1 with 30 db gain in the Ultra High Frequency region. The ease in adapting the same construction to other frequency ranges will be described. An analysis of the beam focusing, r. f. coupling and attenuators used in this tube will be described including the procedures followed in order to eliminate spurious oscillations. The constructional details of the tube will be shown and the assembly techniques for small production quantities will be described.