| Rapid PCB production for prototype circuits is an old theme. A copper-clad board with a photosensitive mask and an etching bath of caustic c...
| Rapid PCB production for prototype circuits is an old theme. A copper-clad board with a photosensitive mask and an etching bath of caustic c...
| This circuit generates speed pulses from the speed-dependent voltage spikes generated by commonly used types of PC power supply fans, which...
| Over the past few years the Personal Digital Assistant or PDA has seen an evolution from a simple electronic diary to a miniature computer t...
| The fan runs constantly in many PCs, which may not even be necessary. A simple controller circuit can regulate the fan speed according to...
| In computer land, extensions for operating systems as weil as for user programs are new arrivals every day. Hardware, too, is frequent...
| The circuit in the diagram enables the speed of an electric PCB drill to be controlled with only one preset. As an aside, the rotary dire...
| For some reason or other, the principal feature of a PC seems to be its CPU clock speed, and that is probably why many PC users have devel...