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
Carpuject* Holder, Reusable plastic, Designed to provide both stability during injection and easy, safe disposal of the glass cartridge unit after use, For instructional purposes only, For simulation practice only