| Mains signalling is a method by which signals can be superimposed on mains wiring for the remote control of electrical equipment. It was fi...
| Mains signalling is a method by which signals can be superimposed on mains wiring for the remote control of electrical equipment. It was fi...
| The link between a PC and its peripherals is usually either parallel (Centronics) or serial (RS232). In some cases, however, it is necessa...
| There can be no doubt that the I²C bus has become the de facta standard for communication between ICs in audio and video equipment. The th...
| In spite of their relatively modest T0220 case, the International Rectifier HEXFETS used in the present GO-watt-output amplifier can cope...
| XICOR's X2404 or Philips' PCF8582 EPROM with integral I²C interface can be connected to the I²C interface pubIished last year via a 6-way...
| The detector was designed primarily for use with quiz games. It indicates who has first pressed a push button by the sounding of a buzzer...
| Double T filters are used in many circiuts. This type of filter can be made into a perfect band-stop filter, at least in theory. In the...
| It had to come: an LED that can produce all visible colours. It Is the Everlight Type 339-1 VRKGBBW. In fact, it consists of four LEDS in...
| A symmetrical power supply may be designed from two standard opamps, but it can only provide a small current (of the order of a few mA).
| For testing a power supply, a fairly large resistive load, preferably variable, is needed. Moreover, testing of the dynamic performance...