A ball bearing cage having a first ring element and a second ring element is provided. The system comprises a memory current mirror coupled to the memory cell and configured to mirror current through the memory cell. The housing has a slot for receiving a recording medium that stores predetermined data. The system for testing conductors held physically separated or otherwise isolated from each other by an insulating material is composed of a high-voltage breakdown tester, a means of connecting the tester to the conductors, and an added gas that is used to displace air in the proximity of the conductors. Several techniques may accomplish this goal, including grinding grooves in the glass to provide a gap that prevents fusion of the glass to the metal frames along the outside edges in order to form a lip.