A model of the simplest form of DC electric motor, having three armature, 2 poles, 3 poles and 4 poles, wound with enameled copper wire and a permanent magnetic field provided by a removable bar magnet. The construction of the model is completely open and all parts clearly visible. A disc-type commutator is incorporated an external connection to the phosphor-bronze bushes is by means of a pair of 4 mm sockets. Operates on 4.5 - 9 Volts DC.
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