Eisco has been designing, producing and supplying high quality lab equipment for education and industry since 1968. Eisco presents demonstration electric motor. The demonstration electric motor is a model of the simplest form of d.C. Electric motor, having three armatures, 2 pole, 3 pole and 4 pole, wound with enamelled copper wire, and a permanent magnetic field provided by a removable bar magnet. The construction of the model is completely open and all parts are clearly visible. A disc-type commutator is incorporated and external connection to the phosphor-bronze bushes is by means of a pair of 4 mm. Sockets.