US$ 13.50
and screens
Lamp-house assembly dimensioned as the matched replacement unit for optical bench and light-source apparatus when the original housing reaches end of life
and Lucite dielectrics for studies of capacitance
showing mechanical advantage through fluid pressure transmission
bridging picofarad and microfarad ranges for RC-time-constant and oscillator investigations
Double Long Pulley, 2" and 1.5" Wheels Material_Acrylic and screensUnequal wheel pulley with a 2 inch and a 1. 5 inch wheel at 5. 75 inches overall in a metal frame with end hooks, showing how different wheel diameters change mechanical advantage.
US$ 13.50
US$ 18.00
US$ 100.00
US$ 100.00
US$ 160.00
US$ 16.00
US$ 13.50