1000mm Black 4mm Double-Sided Connecting Lead Item Type_Density Cubes & Cylinders Tangent-galvanometer instrument that derives current

Tangent-galvanometer instrument that derives current absolutely from compass-needle deflection against Earth's horizontal field

Built to grip round flasks and condensers during distillation or reflux

designed for classroom identification drills and examination preparation

configurable across many ratios for transformer-action demonstrations

Acrylic bell-in-vacuum jar with an internal 4-6V DC electric bell that fades and falls silent as the enclosed air is removed

1000mm Black 4mm Double-Sided Connecting Lead Item Type_Density Cubes & Cylinders Tangent-galvanometer instrument that derives currentOne meter black insulated lead with 4mm banana plugs and 16mm metal terminal tips at each end, sized for the longest cross bench reach in plug to plug patch wiring.