Pulse Generator and High-Speed Memory Circuit

Circuits for the recycling of pulses by means of a driving tube and an electromagnetic delay line have been developed, The necessary characteristic for the driving tube is shown and the effects of the delay line on the amplitude and width of pulses with respect to recycling operation are explained. Two modes of operation of these circuits are possible. One mode of operation allows any number of pulses in a recycling period, the number being limited only by the time space on the delay line. The other mode restricts the number of pulses in a recycling period to a particular value. Experimental circuits are shown which have been used as generators of pulses as short as 5 millimicroseconds at frequencies as high as 50 mc. Other circuits are shown which can be used as memory circuits for the storage of a number of these short pulses.