In-line headphone amplifier

Step 9 Soldering to the chip

It needs a steady hand, a fine tip on the soldering iron, and good lighting in order to place the wires and solder exactly where they have to go.

The other end of the wires have been soldered to the foil and so they stay put while they are bent over the chip, cut to size and soldered to the pads.

I use a watchmaker's eyeglass for this part of the proceedings in order to see what I am doing.