| 摘要 |
1. The segment for assembling electric circuits on a magnetic board or on a table consists of a plate, equipped with printed circuits and securing magnets. Unique characteristics: There are double-track connectors (2) fixed under the plate (1). The connectors consist of the body (5), which contains two contact springs (6 and 7) and a mobile ball (8) and a magnet (9), pressed into the socket (10) of the body (5). The socket is positioned symmetrically with respect to the ball (8) and covered with the lid (11). The plate (1) consists of a printed-circuit plate (3) and the top plate (4), divided by a steel insert (19).
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