1. Check your P.C.Board carefully for damage to the tracks. A Circuit Tester or a multimeter will help check that there are no broken tracks.

2. Bend the legs of the resistor with long-nose pliers to match its holes and push it into place against the surface of the board. Remember that the drawing is looking at the PLAIN side with the tracks away from you. When in place, bend the legs sideways a bit to stop the resistors from falling out.   Solder in place - see Soldering Technique

3. Six PCB pins are located at the locations shown.  Solder in place.

4.  The HK592 must be inserted in the correct orientation.  Check the diagrams and insert.  It is recommended that a heatsink tool be used to reduce the risk of damage from heat during the soldering process.  Solder in place.

5.  Check the orientation of the BC548 transistor.  Insert and solder in place.

6. The battery holder is connected to the PCB pins as shown.  Solder to the PCB pins. 

7. Cut the fig. 8  wire into two appropriate lengths, one for the speaker, one for the switch.  Strip the insulation approx 5 mm from each end.  Tin the ends of the wire - See Tinning wire .

8.  The Speaker has +ve and -ve terminals, use one length of fig 8 wire to connect the terminals to their respective PCB pins.

9.  Use the second length of fig 8 wire to connect the switch to the PCB pins.

10. Insert batteries and press the switch to test.