- Published in issue 7/1998 on page 63
Simple infrared transmitter
This little circuit will be valued highly whenever a signal is required for the testing of infrared receivers. In most cases, such a test is possible without having the associated remote control available. Of course, the test will then be limited to just the infrared sensor device in the receiver, but it’s incredibly useful to begin with when it comes to faultfinding in an infrared controlled system like a TV set or a VCR. The combination of this test transmitter and the simple infrared receiver described elsewhere in this issue yields a simple onechannel on/off remote control.