Ionising Radiation
Quantum and Nuclear
Infra-red transmitter
Teaching Guidance
for 14-16

To make the infrared transmitter you will need:
- 75W resistor (from Rapid metal film resistor MR25 kit. 13-0270)
- infrared-emitting diode SFH487
- 3 mm LED clip (JPR 850-090)
- socket 4 mm red (JPR 705-205)
- socket 4 mm black (JPR 705-206)
- halved square section 'plastic down pipe' approx 9 cm long (DIY store)
- connecting wire
Assemble as shown in the diagram:
