Elektor Team (9510)

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| The ban on subliminal advertising has led to a wider interest in this unusual psychological .. phenomenon. The following circuit offe...

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| This article provides a program for the HP-65 programmable calculator from Hewlett-Packard with which it is possible to determine, and...

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| Headphones have long been popular with hi-fi enthusiasts, since they provide good-quality reproduction at a fraction of the cost of loud...

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| The infra-red receiver and multiplex decoder are the heart of the car electronics. The servo amplifier and speed controller cannot oper...

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| The `Biorhythm` theory offers an explanation for the occurrence of emotional `ups` and `downs`. This article offers a TTL circuit for ca...

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| The ioniser produces a high concentration of negative ions in the surrounding atmosphere, which many people find stimulating and refre...

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| Various circuits for touch switches have been published in Elektor, and many readers have asked for constructional details of touch...

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| The voltage controlled oscillators (VCOs) are the heart of any synthesiser. The quality of the VCOs ultimately determines the performan...

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| Last month`s article provided a brief outline of the development history of computers and their basic architecture. It was intended to...

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| Wherever possible in Elektor circuits, transis• ton and diodes are simply marked `TUP` (Transistor, Universal PNP), `TUN` (Trans...