More about LED (794)

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| The circuit consists of an `electronic` attenuator, arranged to respond to a fingertip touching one of its contact plates. Transistor Tl...

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| In response to numerous requests from readers we publish this LED-display chart to enable constructors to find their way through the ju...

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| In general, analogue pointer in- struments are used for level indicators. Another method of indicating amplitudes and power is to use...

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| The use of digital ICs has increased over to such an extend that by now on average four to five ICs are used in a relatively small circu...