Air-Cooled Rheostat, Model E Grade_Food Grade Designed to recharge the cells

Designed to recharge the cells used in laboratory apparatus

Steel keepers across the 50 x 12 x 8mm Alnico bar pair preserve field strength in storage between lessons

25 inches long

and gray links in a 4-compartment storage case

Cork-lined stainless steel safety flask tongs lock jaws around flask necks to prevent accidental drops during transfer of hot distillation vessels between bench stations

Air-Cooled Rheostat, Model E Grade_Food Grade Designed to recharge the cellsUsed to dissipate heat during sustained high current work, this air cooled rheostat carries a slide bar carriage on a vitreous enameled tube for variable resistance under thermal load.