Yellow Stackable Connecting Lead Subcategory_Test Tubes 5 inch diameter unit produces

5 inch diameter unit produces a +/-3mm controlled vibration on a string or ripple-tank dipper when driven by an external square-wave generator

and an activity guide for introducing circuit construction

98-inch outer diameter sit on a needle-supported balance bar

capable of producing repeated sparks once the base is charged by friction

Ten-centimeter brass cone on an ebonite insulator and metal base

Yellow Stackable Connecting Lead Subcategory_Test Tubes 5 inch diameter unit producesYellow 150mm 4mm stackable safety lead rated to 12A with shrouded nickel plated pins, supplying the third color short reach line in high current 4mm socket bench circuit wiring.