More about project (255)

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| In our article given here we gave answers to the questions our readers.

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| The lamp in slide projectors is normally controlled with the aid of a triac in series with it. This method reduces the brightness of the...

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| The construction project described here consists of two units: an FM stereo multiplex generator and a three-stage VHF FM exciter. Toget...

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| The extremely wide tuning range and the AM/FM compatibility of the receiver described here allows you to listen to virtually any RF signal...

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| Although it is bound to be replaced within a foreseeable period by environmentally safer types, the nickel-cadmium (NiCd) battery is still...

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| The circuit presented here is a dual thermometer that indicates the difference between the temperature indoors and out of doors with the a...

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| To achieve a comfortable room temperature quickly it is often required to switch on the central heating (CH) boller tor ten minutes or...

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| BUILD THE OPTICALOCK

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| Combination locks are useful because they can not be picked like a 'key' lock can. If a combination lock could sound an alarm before it wa...

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| Clocks, as most of you will be aware, can take many shapes and sizes. Here is one with a fairly unusual read-out, intended as an eye catch...