Description

configurable across many ratios for transformer-action demonstrations

Spanning C (256 Hz) through C (512 Hz) in scientific pitch

Tensioner pulley keeps chain engagement consistent on this hand-cranked chain drive

Pair of 12 by 3

Triple Folding Magnifier with 25mm Lens, 10x Ag Mechanics configurable across many ratios forStacks three independently folding 25mm lenses for 10x magnification, each lens stowing into the housing for pocket portable classroom, field, and specimen work.

Exchange/Return Notes

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Final sale items are not eligible for returns or exchanges.
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Triple Folding Magnifier with 25mm Lens, 10x Ag Mechanics configurable across many ratios for

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