Elektor Team (9517)

1-07-1982 | This circuit contains a small addition to the usual two opamp square/ triangular waveform generator. This is the diode included in the feedb...

1-07-1982 | 7-34 — elektor july/august 1982 Smoke detectors are part of any sophisticated alarm system. Most of the professionally made ones use some...

1-07-1982 | Many readers may judge that the subheading is rather simple. Just take a calculator and choose a number, then press the 1/X key and the resu...

1-07-1982 | Electronics can reach far beyond the frontiers of earth as a glance at the illustration shows. This electronic alien is a new arrival discov...

1-07-1982 | 7-36 — elektor july/august 1982 Most alarm systems can be divided into two main categories. They are normally activated by closing, or int...

1-07-1982 | N N1 ... N6 = IC3 = 40106 82606 automatic delay switch .. with visual countdown M. A. Prins 5V It is often said that two heads are better...

1-07-1982 | The dynamic RAM card in the April 1982 issue of Elektor has found many friends among Junior Computer owners. However SC/MP owners will also...

1-07-1982 | 7-38 — elektor july/august 1982 This time base circuit is built using normal readily available CMOS ICs and a cheap crystal. The operation...

1-07-1982 | H A field strength meter is necessary when checking the power output and aerial of transmitters. With this circuit it is possible to measur...

1-07-1982 | People with a passion for hifi equipment and active speaker units are bound to have sought ways in which to switch on the output units via t...