Demonstration Balance Support Electricity & Magnetism_Electromagnetism & Motors and narrow — at 10

and narrow — at 10 inches tall

and 50mm sheaves at 6 inches overall

this electrically maintained tuning fork accepts 2-6V DC at universal binding posts

4A single-phase rheostat with cover-protected constantan winding on a 200x56mm tube and 4mm safety socket terminals

Metal-base one-meter potentiometer with 24 SWG constantan wire stretched along a millimeter scale

Demonstration Balance Support Electricity & Magnetism_Electromagnetism & Motors and narrow — at 10Aluminum notched demonstration balance support at 18. 5cm tall and 280g, sized to hold a meter stick securely for torque, equilibrium, and lever principle demonstrations.