Air-Cooled Rheostat, Model C Subcategory_Erlenmeyer Flasks Refracting white light into a

Refracting white light into a visible rainbow spectrum

supplying ten selectable values for low-resistance Ohm's-law work and bridge-circuit calibration at the bench

in a 200x125x60mm portable case for driving LED bridges and waveform demonstrations

and protein separation across three selectable ranges (0-50V

supporting identification-key exercises in medical and nursing anatomy training

Air-Cooled Rheostat, Model C Subcategory_Erlenmeyer Flasks Refracting white light into aAir cooled rheostat with extended tube ventilation, dissipating heat across the slide bar carriage during sustained high current circuit work in physics laboratory demonstrations.