Energy Transfer Apparatus - Malvern Spring Unit || 43-

CA$1.00
SKU:
43-P20405
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Product Overview

For showing conversion of potential energy stored in twisted rubber to kinetic/electrical energy. Elastic bands are looped and stretched between pulley and support. A crank handle and pulley combined with ratchet stop allows the rubber to be wound up and released to drive a dynamo, supplied without dynamo.