| 摘要 |
A circuit element has a substrate with a set of spaced switch leads thereon and an overlay magnetically retained on the substrate with a shorting strap on the overlay in facing relation with the conductors of the substrate. The shorting strap is arranged to engage at intersection points at least two of the switch leads when the overlay is in place on the substrate to electrically connect the two switch leads. The shorting straps of different overlays are uniquely arranged to connect selected pairs of switch leads.
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