Description

sodium benzoate

dual bore sights

Beech wood test tube rack accommodates 13 tubes up to 25mm diameter in a 10

Pan balance demonstration lever with a low-friction brass pivot

Standard Demonstration Dynamo with Hand Driver on Base cylinder sodium benzoateHand cranked pulley steps up to a smaller dynamo pulley through a rubber belt, lighting an LED at the 4mm sockets; the unit also runs as a motor on 6 8V DC for energy conversion demos.

Exchange/Return Notes

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Standard Demonstration Dynamo with Hand Driver on Base cylinder sodium benzoate

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