150mm Stackable Connecting Lead, Model W State_Solid this decade resistance box substitutes

this decade resistance box substitutes for fixed resistors in circuit experiments

used both in galvanic-cell construction and as the photoemitter in classic photoelectric-effect demonstrations

Alnico-alloy bar magnet pair shipped in cardboard storage with steel keepers bridging the ends

this 16 SWG bare copper wire ships on a 500g reel approximating 85 feet of high-conductivity material

Concave glass mirror

150mm Stackable Connecting Lead, Model W State_Solid this decade resistance box substitutesSafety plug 150mm black 4mm stackable lead rated to 12A with shrouded contact pins, sized for short reach high current branched circuits where shielded plug safety is required.