By connecting the Bradbury-Nielson gate directly to a driver without a transmission line, distortion of the voltage waveform experienced a the BNG are much reduced. A jacket grip of rigid material is retained between the coupling body and a stabilizing body coupled to a cable end of the coupling body. The invention further provides the simple process for the production of the polyols, and also, the production of polyurethanes comprising reacting a polyol according to the invention with a polyisocyanate. The toner particle permits inclusion of greater amounts of crystalline resin materials in the core, thereby lowering the minimum fusing temperature of the toner formed from the particles.