Basic St. Louis Motor, Useful In Demonstrating The Operations Of A Dc Motor, Consisting Of A Two-Pole Armature Mounted Between Magnets. Steel Supports Are Mounted On A Ridged Plastic Base. Operates On 3 To 6 V Dc.
Capacitance Substitution Box, Capacitor Box, Using 1 Rotary Dial With 12 Steps. Various Capacitors Are Selected One By One. Useful For General Purpose Electronic Work. The Unit Has An Easily Selectable Range Of 12 Preferred Capacitors From 100 Pf To 1 Mfd
Energy Conversion Kit, Wonderfully Demonstrates The Process Of Energy Conversion Between Many Different Forms Of Energy. Ideal For Classroom Demonstrations As Well As A Hands On Learning Tool, Mounted To A Solid Plastic Board Are Three Different Sources