| A circuit is described that, controlled by a computer, generates perfect sine wave signals.
More about Circuit (708)
| The circuit described here mimics the behaviour of a firefly, but only if you build more than one. Although it may be a bit bold to spea...
| Although it has no detector or alarm actuation device of any kind, the present circuit may still function as a deterrent against car thi...
| This running light circuit drives a matrix consisting of 8 up to 32 LEDs, and is primarily intended for playful and decorative application...
| Transferring a PCB layout from paper on to a circuit board is either costly (photographie method) or cumbersome (using sprays and the like...
| Many car battery chargers costing not more than £12- £15 are pretty spartan devices. Car owners should beware of using such chargers whi...
| Computers have evolved rapidly over the past few years, and are now used for design work that was long thought to be possible by hand only....
| A digital-to-analogue converter is described, which is intended to be connected directly to a compact disc player or digital cassette reco...
| One tiny integrated circuit and a handful of standard components allow you to build a multi-purpose proximity switch. The circuit can be us...
| Although a fuse is primarily intended to melt when the current through it becomes too large, there are times when this should not happen...