More about Electronics (842)

1-09-1990 | After their management buy-out, Syd Wedeles and his partner Clem Clemence increased the tumover of Cricklewood Electronics by some 80 per...

1-09-1990 | Experimenting with electronics is great fun and many of you will have no objection to a drawer full of projects that never made it beyond t...

1-07-1990 | Electronics hobby enthusiast Geoffrey Greaves got tired of paying 'high prices' for components when building his own computer in 1978, so...

1-07-1990 | The purpose of this simple circuit is to deter potential car burglars simply by a brighlly flashing LED, implying that the car is fitted...

1-07-1990 | The electronic doorman enables a door to be opened automatically after a predefined delay from the moment a bell has been rung. It is int...

1-07-1990 | This straightforward circuit, based on four darlingtons, enables a d.c. motor to rotate clockwise or anti-clockwise under the control of two...

1-07-1990 | The usual senes 7805 and 7812 three-pin voltage regulators are excellent for normal applications. If currents up to 3 Aare required, an a...

1-07-1990 | The most noteworthy element in this circuit is Th1, which is known in data books by no fewer than three different names: thyristor tetrod...

1-07-1990 | As more and more electronics enthusiasts appear to have overcorne their initial doubts, misgivings and fears of working with surface-moun...

1-07-1990 | In most variable power supplies, the correlation between the setting of the wiper of the relevant potentiometer and the output voltage is...