Soldering Iron, Model A Lab Equipment_Power Supplies Used to wind precision resistance

Used to wind precision resistance coils that don't drift with temperature

and pins outfit groups for hands-on study of pinhole imaging

Hand-cranked 12V DC generator in a clear plastic case with a front-mounted lamp and binding posts

sized for high-turn-count solenoids and transformers where the wire needs to wrap many times around a small core

and peripheral nerve branches across the full body for neurology and anatomy teaching

Soldering Iron, Model A Lab Equipment_Power Supplies Used to wind precision resistanceTwenty five watt soldering iron with a wooden bakelite handle and a long life pencil bit, sized for fine soldering work on circuit boards and small electronic components.