Economy Differential Pulley Capacity_500mL 5A bobbin coil for the

5A bobbin coil for the demountable transformer

with adjustable slit and draw-out focusing for examining the spectral composition of light sources

providing the high-resistance leg of a voltage divider where current draw needs to stay in the microampere range

Used to introduce LED polarity and forward-bias behavior

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Economy Differential Pulley Capacity_500mL 5A bobbin coil for theEconomy three step plastic differential pulley with 20, 40, and 60mm sheaves on a single rod mounted piece, a low cost option for introductory mechanical advantage demonstrations.