This well-designed apparatus demonstrates both shunt-wound and series-wound connections for motors and generators, and can be used with AC or DC supplies. Includes a 2-pole armature, commutator, brushes, and a coil for use as an electromagnet. Also includes a powerful horseshoe magnet. Easily dismantled to change the configuration. Requires a DC power supply, sold separately. Size: 9 x 9cm x 8cm high.
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