Charge AND Discharge KEY

Comprising 12 non-polarised capacitors ranging from 100pF to 0.47 m F using standard preferred values, in step ratios of approximately 1:2 Selection is by means of a rotary switch and external connection is via a pair of 4mm sockets. All capacitors are of ± 2% tolerance, 250V D.C. Used for Charging and Discharging of a capacitor. Nickel plated brass strips and pillars are used. Three terminals for connection fitted on a thick bakelite plate. Contact Resistance : 2 milli ohm approx. Max.