AEMC BC05 [2131.26] Capacitance Decade Box with 5 Ranges, 1-10kµF*DISCONTINUED NO REPLACEMENT*. AEMC BC05 Capacitance Decade Box with 5 Ranges, 1-10kµF*DISCONTINUED NO REPLACEMENT*. The Capacitance Decade Box Model BC05 is built into a metal bench top box. It is used for testing and calibration of test equipment. The main function of the Model BC05 is to create a capacitance with a specific value by using a combination of the rotary decade switches. The Model BC05 has five decade ranges. The Model BC05 is equipped with Ø 4mm safety terminals for connections. It is designed to EN 61010-1 safety standards. Includes ground jumper lead.