Open-Type Economy Rheostat, Model B5 Included_Rod & Base 5-mil coextruded polyethylene for heavy

5-mil coextruded polyethylene for heavy coin loads

sized to give student bench setups a direct numeric reading without analog parallax

5-inch unfinished birch plywood oven rack push puller supports hot-rack manipulation without direct hand contact

channeling displaced water cleanly into a collecting beaker for Archimedes-principle work

offering a well-characterized expansion coefficient for comparative-metals work

Open-Type Economy Rheostat, Model B5 Included_Rod & Base 5-mil coextruded polyethylene for heavyUsed as a series resistor or potentiometer in adjustable current circuit work, this open type slide wire rheostat carries oxidized constantan winding on a pipe with three 4mm sockets.