| 摘要 |
A printed circuit is produced with a base circuit and a number of optional circuit elements. One or more of the optional circuit elements may be added to the base circuit to determine or change the characteristics of the base circuit. Alternatively, one or more of the optional circuit elements may be removed from the base circuit to determine or change the characteristics of the base circuit. The base circuit and optional circuit elements may be printed on a single substrate. Mechanisms may be provided to facilitate the separation of the optional elements form the substrate either to introduce them into the base circuit or remove them from the base circuit to change the characteristics of the base circuit. A simple, low-cost, robust, and easy to use base circuit and optional circuit element is provided. |
