| There is a problem if you want to use a car battery to power a circuit which requires a symmetrical supply voltage. Having abandoned the i...
| There is a problem if you want to use a car battery to power a circuit which requires a symmetrical supply voltage. Having abandoned the i...
| On much audio equipment, the headphone output is simply derived from the loudspeaker output via a series resistor: not a very elegant desi...
| Many car battery chargers costing not more than £12- £15 are pretty spartan devices. Car owners should beware of using such chargers whi...
| Many small and older cars are not provided with a rev counter, which is a pity, because this instrument is veryuseful tor driving with tue...
| Computer-controlled hi-fi equipment is no langer a novelty. Such apparatus has given rise to special analogue lCs becoming available that...
| Since the proposed circuit makes use of the Centronics interface, it is suitable for virtually all types of computer: even older types wi...
| Amplifiers that have no capacitor at their output may, in case of a defect, apply a direct voltage to the loudspeakers and this can destr...
| The electronic ignition circuit presented here is intended to be inserted into a car's conventional ignition system. In effect, it replac...
| The mute circuit presented here Is specially designed for use with the Roland MT32 module, although with some small alterations it should...
| Here is an all-purpose d.c. power supply tor symmetrical as well as asymmetrical use, and capable ot supplying high output currents and vo...