ABSTRACT

If the board you’ve chosen is larger than needed for your one-chip circuit, you may want to cut it down before you start soldering on parts-scribe along the dotted line with a sharp knife, then snap the board over the edge of a table. Alternatively, you can build your fi rst circuit at one end, and add designs as you develop them. Once you’ve got your circuit board ready, start by placing a 14-pin IC socket on the side of the board that does not have the copper paths and pads (this is the component side-the other side is the solder side). Push the pins gently through the holes, insuring that, if there is a matrix of rows and columns like on the breadboard, the socket is similarly positioned, with a rows fanning out from each pin, not shorting them all together. Make sure all the pins go though fully, and none are bent over on top of the board. Solder the socket pins carefully: avoid letting blobs of solder short together adjacent pins or copper traces (see fi gure 19.3). Th e IC is inserted into this socket aft er you have fi nished all your soldering.