Elektor Team (9517)

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| Multiply X and Y and you get XY -all very simple and straightfor-ward -at least on paper. But what if X and Y are analogue voltages, which m...

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| Circuits for synthesising peak pro-gramme meters by using light emitting diodes are certainly not new, but the design shown here offers simp...

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| For microcomputer enthusiasts and anyone working with large scale digital circuits, a ribbon cable tester can prove a usefu I aid.

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| In the world of model railways, electronics is playing an increasingly important role, and it is only a matter of time before the micro-proc...

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| With the aid of the following circuit a seven-segment display can be gener-ated on an oscilloscope screen. The height and width of the digi...

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| To accurately measure the con-centration of hydrogen ions (pH value) in a solution, a `glass electrode` is often used in chemistry laborat...

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| This robot is an example of a simple cybernetic model, i.e. it will take whatever manoeuvres necessary to navigate its way around any obsta...

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| With the overcrowding that is a common feature of most car parks nowadays, the chances of coming back to one` s car and finding a dent in t...

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| The circuit described here was designed to fulfill the need for a jet airliner sound effects generator in a school play which involved an at...

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| Mechanical mileage recorders for bicycles have been commonly available for a large number of years, however there are several advantages to...