Kundt's Tube with Cork Piston and Wooden Base, 33" Rod Material_Stainless Steel Flat-bottom narrow-neck boiling flask in

Flat-bottom narrow-neck boiling flask in autoclavable borosilicate glass holds 3000mL for large-volume heating

internal structures

Copper-block plug key switch with two 4mm terminals and a removable plastic-guarded plug

setting UV sanitization cycle duration and restoring full cabinet function when the original switch fails under classroom use

sized for the next step up from the 100uA meter when small-signal circuits exceed its full-scale deflection

Kundt's Tube with Cork Piston and Wooden Base, 33" Rod Material_Stainless Steel Flat-bottom narrow-neck boiling flask inGlass tube 33 inches long with a cork piston riding on a stable wooden base, used to demonstrate standing waves in air through powder pile node spacing measurements.