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
Tech-Med* Digital Timer, Counts down and up from the max time of 99 minutes, Pocket size and has a spring loaded clip and magnet, 1/2 in Number display, Battery included, Size: 2-3/4 x 2 x 1/2 in