500mm Connecting Lead, 4mm Plug, Model C Subcategory_Wash Bottles varying length isolating density as

varying length isolating density as the single variable across materials

5V to 12V at up to 1A

and storage between uses at the laboratory bench

this battery box adds insulated terminals and prevents short-circuits from rolling cells touching exposed lab metalwork

Reproduces Ewald von Kleist's 1745 charge-storage device with concentric metal cups around a plastic dielectric

500mm Connecting Lead, 4mm Plug, Model C Subcategory_Wash Bottles varying length isolating density asUsed to bridge a 4mm socket instrument to a bare component test point on the bench, this 500mm black lead pairs a 4mm plug at one end with a crocodile clip at the other.