Standard Rheostat, Model B Material_Ceramic Youth-proportioned half-size torso with 9

Youth-proportioned half-size torso with 9 removable parts including brain

the numbered dicot leaf model on a base maps epidermal

Hinged inclined plane with an integrated arc angle-measurer

One-ohm reference resistance coil non-inductively wound from double silk-covered constantan on a plastic rod inside a transparent housing with two terminals at plus-or-minus 1% accuracy

with banana-plug terminals for physics and electronics laboratory lead connections

Standard Rheostat, Model B Material_Ceramic Youth-proportioned half-size torso with 9Standard rheostat with oxidized constantan winding on a vitreous enameled steel tube and a heavy duty sliding contact, supplied with three binding posts for rheostat or potentiometer wiring.