PURPOSE: To miniaturize the external appearance of a magnetic pulse generator, to shorten a lead wire and to easily obtain short pulses by successively and vertically arranging plural saturatable reactors with annular iron cores from their initial stage up to the final stage on the same axis, horizontally arranging two cylindrical conductors on the same axis and connecting a capacitor between both the conductors.

CONSTITUTION: An annular inside conductor 9 and an outside conductor 10 are coaxially arranged on the outside of a saturatable reactor SI 2 constituted by winding two windings 6 around an annular iron core 2. Each two cylindrical ceramic capacitors 3 are connected respectively on the right and left sides between both the conductors 9, 10 so that both the poles are connected to the conductors 9, 10. On the upper side of the reactor SI 2, an inside conductor 7, a ceramic capacitor 3 and an outside conductor 8 are coaxially arranged on the outside of a saturatable reactor SI 1. Thereby, it is unnecessary to insulate capacitors C0, C1 from a fixing frame or the like and the positive pole side is turned to the inside and opposed to the winding terminals of the reactors SI 1, SI 2 having the same potential, so that insulation can be omitted, the external appearance can be reduced and the lead wire can be also shortened. Thus, short pulses can be easily obtained.