Stackable Connecting Lead, Model X Entomology & Zoology_Zoology Charts & Models this motor-generator pairs a split-ring

this motor-generator pairs a split-ring commutator against slip rings with bulb indicators

Hand-cranked cam turning against both a straight follower and a lever follower

letting students measure rotational distance against linear advance to derive the mechanical advantage of the spiral

a 24W filament lamp

expanding and closing to suit different optical-component sizes on a single bench-mounted holder

Stackable Connecting Lead, Model X Entomology & Zoology_Zoology Charts & Models this motor-generator pairs a split-ringUsed in high current circuits where exposed plug pins are not acceptable, this 4mm stackable safety lead carries up to 12A through nickel plated split hollow pins on both ends.