In this paper we illustrate the theoretical analysis, design, computer simulation, experimental realization and results of a circuit able to compress a rectangular pulse and to increase its intensity. Utilizing a pulse forming line, l long, and a halved storage line, l/2 long, both connected on the same load resistor by means of fast switches, a time compression factor of 2 and a doubled output voltage were achieved. Charging the pulse forming line at VC, or applying, to the circuit, a short pulse VC/2 large, 2tl long, with t the delay per unit length, a compressed output pulse of VC, tl, was obtained, as expected by theoretical analysis and computer simulation.