Elektor Team (9517)

1-09-1977 | The disadvantage of conventional AM-mains intercoms is that they are subject to the often highly disruptive effect of mains interference...

1-09-1977 | Almost every electronics enthusiast likes to house his lovingly constructed projects in an attractive case or cabinet. Although a wide...

1-09-1977 | Although there is no shortage of designs for darkroom timers, many of these suffer from the twin drawbacks of a linear timing scale and...

1-09-1977 | Although modern audio amplifiers fre- quently sport an abundance of (seldom- used?) gimmicks, very few amplifiers possess compre...

1-09-1977 | The basis of any television signal is a complex synchronisation wave- form, which ensures that the scanning circuits of the TV receiver...

1-09-1977 | In the previous article the keyboard and keyboard interface circuits were described, together with the printed circuit board for the ke...

1-09-1977 | Having described the servo amplifier in the previous article, the motor speed controller is discussed. This is followed by a descript...

1-09-1977 | Industrial Electronic Engineers, Inc. (IEE) recently introduced IEE-HERCULES Model 1785 .54" Dual, alphanumeric LED display, common cath...

1-07-1977 | This `inaudible` car horn is intended for warning four-footed pedestrians of imminent danger, without needlessly scaring the (h...

1-07-1977 | A drawback of conventional integrator cir- cuits (figure a) is that the R-C junction is at virtual earth; this means that C appea...