Abstract: Herein disclosed is a self-starting synchronous motor with a defined direction of rotation, a permanent magnetic rotor and a claw-pole type stator. The stator embraces an operating winding where several poles are combined to form main pole groups and to form auxiliary pole groups which are loaded with short circuiting discs. Furthermore, the synchronous motor of this invention has a defined direction of rotation which is not preset by means of a directional blockage. The poles, which are located on a circular ring and protrude from the oppositely located front sides and which interlock, are combined to form two main pole groups and two auxiliary pole groups wherein the total number of main poles is smaller than the total number of auxiliary poles and that from each of both of the frontal sides protrude the same number of main poles and the same number of auxiliary poles.

Abstract: The application discloses an electronic multirange step resistor for adjustment of a timing relay with an analog adjustment which is equipped with a switch for the selection of the various resistance ranges and which is further equipped with a turning knob for the analog adjustment within each selected range.

Abstract: The invention is concerned with a time delay circuit for timing relays with operation by means of alternating potential with a rectifier, a programmable unijunction transistor and an RC network with a common junction point.