Description

Two-speed ticker timer kit printing 25 or 40 dots per second on paper tape via carbon discs

interference - within reach of an introductory wave-mechanics curriculum

bulb and cell holders

supporting both rheostat and potentiometer wiring at high current

Wooden Storage Box for 2" Bar Magnets Subcategory_Spring Scales Two-speed ticker timer kit printingWooden storage box 3. 25 x 2 x 1 inches with a sliding top, sized to protect a pair of 50mm (2 inch) bar magnets between lessons and isolate them from steel benchtops.

Exchange/Return Notes

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Wooden Storage Box for 2" Bar Magnets Subcategory_Spring Scales Two-speed ticker timer kit printing

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