10-100kΩ Single Dial Resistance Box Lab Supplies_Filtering Supplies Brass slotted mass set combining

Brass slotted mass set combining eight 25 gram masses with a 25 gram hanger

this pipette-type hydrometer draws electrolyte into a glass body with a colored-zone float for direct reading

Used to render a permanent magnet's field lines visible without iron filings

Machined to equal volume from six different metals

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

10-100kΩ Single Dial Resistance Box Lab Supplies_Filtering Supplies Brass slotted mass set combiningHigher 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.