An arrangement for studying pulsed, cold electron emission is described which is composed of the following components: a generator unit for high-voltage rectangular pulses that permits a series of pulses of negative and positive polarity to be obtained (from one to forty) in which the duration can be smoothly varied from 5 mu sec to 5 sec at amplitudes from 0 to 38 kv, and also a sensitive circuit for registering weak pulses of the emission currents (10** minus **1**0 to 10** minus **1**1 A).