CAPACITANCE SUBSTITUTION BOX

Consist of 12 capacitors ranging from 100 pF to 0.47 microfarad (standard capacitors) selectable by rotary switch. Fitted inside a wooden box, well polished, and outside connection by a pair of 4mm sockets. Capacitance values are 100pf, 200 pF, 470 pF, 1, 2.2, 4.7, 10, 22 and 47nf and 0.1, 0.22, 0.47 Microfarads, Accuracy ± 3%, 250V DC.