| As far as audio enthusiasts are concerned, striving for perfection is a never-ending quest. The present circuit should appeal to them.
All items tagged with Time and technology (303)
| This simple non-retriggerable pulse generator ('one-shot') is designed around an inexpenstve digital watch crystal and two commonly avai...
| A battery of solar cells can recharge a NiCd battery with better than 80%, efficiency, provided the solar battery voltage exceeds the fu...
| An ideal power supply maintains its e.m.f., irrespective of whether it is providing current or sinking it. The present supply approaches...
| Many guitarists still swear by the good old valve amplifier. It is fact that valve amplifiers produce a sound different frorn that of a...
| A part from use as a standard charger, the present unit may also be used for continuous trickle charging to keep a 12 V lead-acid battery...
| Soldering is an unhealthy activity: when the tin melts it releases harmful vapours. lt is, therefore, advisable, to install a small 12 V...
| When a three-phase mo-tor is being installed, it is essential to know the sequence of phases R, Y and B, since an error may have disastro...
| Reversal of the supply lines to a circuit normally has disastrous consequences. The protection described here can prevent such a disaste...
| Electric points of a model railway system contain two small magnets. To set the potnts ina gtven position, one ofthese magnets must be e...