1MHz Function Generator, Features: Sine; Square and Triangle Wave Generator 1Hz - 1MHz Sine Wave Distortion Less Than 1% Square Wave Symmetry Less Than 1%, Runs on a 9V battery
KidWind Wind Turbine Generator with Wires, Recommended for College, High School, and Middle School Science, Voltage output: 0-10 V, Amperage output: 0-0.3 A, Diameter: 1.25 in, wire length: 4 ft, Shaft diameter: 2 mm
Stirling Generator, Fully-assembled. Dimensions: 7L x 3.5W x 3.5H inch. Includes spare cylinders (1 each), crankshaft pin, cylinder o-ring, and allen wrenches for removing damaged cylinders. Alcohol not included. Features a secured fuel source in a recessed well on wooden base.