Single-Phase Rheostat, Model D Botany_Botany Charts & Models letting students see the plate

letting students see the plate stack and watch electrolyte action through the side wall

anchoring retort stands and apparatus to the edge of a classroom workbench

Built for amphibian development study

this silk square gives friction rods a strong positive charge for triboelectric and electrostatic demonstrations

Twin 15mL graduated tubes mounted over platinum electrodes on a banana-socket base

Single-Phase Rheostat, Model D Botany_Botany Charts & Models letting students see the plateCover protected single phase rheostat with constantan winding and 4mm safety socket terminals at plus or minus 10% nominal value tolerance, the entry level shrouded wiper unit in the family.