Air-Cooled Rheostat, Model E Grade_Food Grade Cork-lined stainless steel safety flask

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

Higher-output 65-watt soldering iron with a wooden bakelite handle

well suited to demonstrating the force on a current-carrying conductor in a magnetic field

supplying replacements when the originals lose loft or split during repeated charging cycles

and gray links in a 4-compartment storage case

Air-Cooled Rheostat, Model E Grade_Food Grade Cork-lined stainless steel safety flaskUsed 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.