More about LED (792)

1-11-1997 | This article provides suggestions and other useful data to help you design a door or lock opener system based on a ready-made X-band...

1-10-1997 | The circuit described in this article is eminently suitable for those who appreciate comfort as well as sound quality. In the circuit...

1-06-1997 | The TRC1300 and TRC1315 are remote control serial-data encoders and decoders, and are members of the MARCSTAWM (Multichannel Advance...

1-06-1997 | Most of you will be aware that DTMF/telephone dialing signals are two-tone combination that may be recorded on any cheap tape recorder, just...

1-04-1997 | These days, if you want to protect your home and valuables, you can't avoid installing a clever and reliable alarm system. The circuit...

1-04-1997 | This second and final part of the audio mixer board deals with the construction and the control of the board via a PC. To do this, all...

1-03-1997 | The audio mixer board presented in this article cannot be compared with any mixer board previously published in this magazine. In a w...

1-02-1997 | Flexible tubelight units containing many vividly coloured lights are very popular ornaments these days, and they are seen in many shop...

1-02-1997 | In here we respond to our reader letters.

1-12-1996 | The article describes a remote control (send/receive) system that does not use infra-red light, but visible light. It is particularly...