How to Build Remote Controls
- 1). Place a push button switch into the side of the remote control housing. Fasten a battery holder to the upper right corner of the housing.
- 2). Attach a wire to the negative terminal of the 3 volt battery holder and run it to the push button switch. Run a wire from the push button switch to the NPN silicon transistor and to the Meg 1/4W resistor. From the Meg 1/4W resistor run another wire to the 22K 1/4W resistor and to the PNP silicon transistor.
- 3). Place the infrared LED into the front of the remote control housing. Run wires from both transistors to the infrared LED. Run a wire from the 22K 1/4W resistor to the C220.01uF 16v ceramic disk capacitor. Connect the ceramic disk capacitor to the NPN silicon transistor.
- 4). Run a wire from the PNP silicon transistor to the positive terminal of the 3 volt battery holder. This will close the circuit and allow the current to flow. Make sure the push button switch is in the off position and place a 3 volt battery into the battery holder.
- 5). Point the LED of the remote control at a receiver and it should power on and off. If the receiver does not respond, hold down the push button switch and point the LED at the receiver. Adjust the taper or pot within the receiver until you hear a click. The remote control and the receiver should be linked.
