Plug-in circuit board for teaching purposes - has contact sets mounted on base plate opposite holes in front plate and receiving plugs or component leads

摘要

Electric circuits can be produced on the board for teaching purposes using components with plug-in leads. The board consists of a front plate with holes arranged in a modular grid, and of a base plate, between which spring contact groups are provided, accessible through the holes. The contact sets (3) consist of a central sleeve for a standard 3-5mm pin, and four contact clips for pins of smaller dia. The contact sets (3) are held in rectangular sleeves (4) mounted on the base plate (1) and open towards the front plate (2). Springs forming the central sleeve (15) are bent over the edges of the rectangular sleeves and change into the U-shaped clips.