Price - Stock No 50
Price - Stock No 51 with Buzzer
Skill Toy With Buzzer
Check your kit
- printed circuit board (PCB)
- LED (Light Emitting Diode)
- battery snap
- resistor - 390 ohms
- 2 x PCB pins
- hook-up wire
- heat-shrink tube
- teardrop terminal
- Turn the PCBoard over so that you are looking
at the PLAIN side. From the drawing, find the locations of the
components. You will need to turn the PCB around so that
it coincides with the placement sheet.
Remember that you are seeing the copper track through the PCB.
- Bend the legs of the resistor to a shape that
will fit into its two location holes. Push them through and firm the
resistor down against the PCB.
- Spread the legs of the LED carefully so
they spring into its correct holes. Push the legs just
through the PCB so the LED stands high off the board. You should check
that the small flat on the flange at the base of the globe is the same way
round as the drawing shows. The LED is polarised - a
semiconductor - and will not work if placed the wrong way round.
- These two components may be soldered in place.
- Push the ends of the battery snap wires through, and solder.
- Push the molex pins into the correct holes and solder.
- Bare the ends of the hook-up wire, tin both ends and solder to the
two pins. Leave the wire in one piece until you have tested your project
on a battery, and it works.
- If you are fitting a BUZZER, make sure you observe the
correct polarity. Solder the RED (+), and BLACK (-) leads to the
bus-bars shown on the drawing.
- Connect a 9 volt battery and test. If it doesn't work check that you have
all the locations correct and that you have the
LED in the correct polarity.
Contact CdS electronics