Similar at no. 1348, St. Louis motor, but allows more advanced experiments that include comparison of AC and DC motor and generator, magnets, field magnets series and shunt motors. Works on both AC and DC 6-12V. Two pole armature wound on plastic bobbins. Field magnets consist of ceramic disc magnets. Two pairs contact brushes for commutator and slip rings. Pair of coils for use as electromagnet, in place of ceramic magnets, also supplied. With instruction.