Triple Folding Magnifier with 25mm Lens, 10x Ag Mechanics Used to find resonance points

Used to find resonance points in an open air column by sliding the tube length against a struck tuning fork

sized for whole-class visibility of momentum-and-energy conservation through pendulum collisions

configurable across many ratios for transformer-action demonstrations

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

dimensioned as the matched replacement carriage for the LED ray box (PH0602ALED) track when an original rider is lost or damaged

Triple Folding Magnifier with 25mm Lens, 10x Ag Mechanics Used to find resonance pointsStacks three independently folding 25mm lenses for 10x magnification, each lens stowing into the housing for pocket portable classroom, field, and specimen work.