Circuit board for self-assembly. The two middle contacts of each of the 4 plugs are individually routed to a connecting rail. On the underside there are additional SMD pads with a 1.27mm grid.
This board is ideal for building special connection bricks. To do this, simple wire bridges must be soldered between the desired rails. In addition, wired components can be installed directly. On the underside it is possible to connect the two contacts of a plug with a 0Ohm SMD component. With a connector, the signals can be routed from the contacts to up to 4 vertical 1.27mm experimental boards, allowing complex circuits to fit into a 1x1 brick footprint.