More about project (255)

1-03-1997 | In our article given here we gave answers to the questions our readers.

1-12-1993 | 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...

1-05-1993 | The construction project described here consists of two units: an FM stereo multiplex generator and a three-stage VHF FM exciter. Toget...

1-05-1993 | The extremely wide tuning range and the AM/FM compatibility of the receiver described here allows you to listen to virtually any RF signal...

1-04-1992 | Although it is bound to be replaced within a foreseeable period by environmentally safer types, the nickel-cadmium (NiCd) battery is still...

1-02-1992 | The circuit presented here is a dual thermometer that indicates the difference between the temperature indoors and out of doors with the a...

1-11-1991 | To achieve a comfortable room temperature quickly it is often required to switch on the central heating (CH) boller tor ten minutes or...

1-10-1991 | BUILD THE OPTICALOCK

1-09-1991 | 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...

1-07-1991 | 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...