St. Louis Motor.

Here's a classic way of converting energy from electrical to rotary. Demonstrate the fundamentals of motors and generators with this open design. Features powerful ceramic disc magnets on brackets and an armature with low-friction brass cone bearings. Includes: 2-pole DC armature; permanent magnets; armature with slip commutator; 2 bronze brushes; instructions. Needs 3-6 V DC power source.