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Several transistor pulse-regenerative amplifier circuits suitable for use in a 3 megacycle digital computer are described. These circuits all utilize a type of feedback which is essentially external to the transistor. As a consequence, a negative resistance transistor characteristic is not required. Some of these circuits were designed specifically to be relatively tolerant of the slow recovery of reverse impedance found in many germanium diodes.
Simkins et al. (Sun,) studied this question.