More about project (255)

1-06-1991 | This month we present an experimental circuit to demonstrate that visible light can be modulated and used as a carrier to convey informati...

1-04-1991 | Those of you who have ever spent a summer's day at the beach will affirm that the sun, the wind, the sand and the water can have a repo...

1-03-1991 | This month we tackle a high-frequency project by venturing out into the exciting world of VHF radio amateur communication. Build this conv...

1-02-1991 | The test instrument presented here is capable of supplying sine-wave, square-wave and triangular-wave signals with an adjustable amplitude...

1-10-1990 | Phase, phase difference and phase shift are commonly used terms in electronics theory. Where an oscilloscope or a vectorscope are not...

1-09-1990 | This month's project is an all-electronic version of the well-known one-armed bandit found in amusement arcades. Apart from the fun in...

1-06-1990 | Power zener diodes are rare, hard-to-obtain and quite expensive electronic devices. The circuit described here is based on a handful of co...

1-05-1990 | Electronic temperature monitoring need not be complex. This circuit gives an audible indication when apreset temperature ls reached. It ca...

1-04-1990 | Test equipment, however simple, is essential at almost any level in practical electronics. In many cases, one grows fond ot certain test ge...

1-01-1990 | This month's project ls a long-distance intercom system that can be set up very quickly for outdoor events because a large number of exten...