10-100kΩ Single Dial Resistance Box Lab Supplies_Filtering Supplies and mechanical-advantage experiments (stand base

and mechanical-advantage experiments (stand base and support clamp sold separately)

dimensioned to fit a pair of 75mm (3-inch) bar magnets and the keeper that bridges them while in storage

Wooden baseboard with millimeter scale

sized for individual student-lab use in simple-machines units

providing dense uniform spheres for ramp-and-collision experiments where a heavier projectile is needed than the plastic marbles can provide

10-100kΩ Single Dial Resistance Box Lab Supplies_Filtering Supplies and mechanical-advantage experiments (stand baseHigher impedance single decade resistance box stepping from 10k to 100k ohms in 10k ohm increments, providing the standard reference decade for op amp input and analog signal path circuit work.