Superior Bar and Gauge Apparatus Pack Size_12 Sprung-tip jockey contact slides smoothly

Sprung-tip jockey contact slides smoothly along the resistance wire of a Wheatstone bridge or potentiometer to find the null-deflection balance point during student-built bridge experiments

secured on a plastic-ended metal rack with a carrying handle for physics force and acceleration experiments

and friction experiments on inclined planes and tracks

Lamp-house assembly dimensioned as the matched replacement unit for optical bench and light-source apparatus when the original housing reaches end of life

Suspends a 20mm solid lead cube from a spring scale for water-immersion density measurement

Superior Bar and Gauge Apparatus Pack Size_12 Sprung-tip jockey contact slides smoothlyRod mounted metal bar and U shaped gauge demonstrator with an insulated handle, flame heating the bar until thermal expansion stops it from passing through the gauge opening.