4.Main Content
apparatus
Infra-red transmitter
To make the infrared transmitter you need
• 75 W resistor (from Rapid metal film resistor MR25 kit. 13-0270)
• infrared-emitting diode SFH487 (Maplin CY88V)
• 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.
© University of York Science Education Group
Updated 24 Jan 2005