| The sight of so many interesting and diverse circuits contained in one issue may well lead to a quickening of the pulse rate for some of ou...
| The sight of so many interesting and diverse circuits contained in one issue may well lead to a quickening of the pulse rate for some of ou...
| Blechschaden-Alarm (Auto Rüttelkontakt)
| Cold weather is one of the banes of a motorist`s life. Not only must he worry about the car starting on cold winter mornings, but there is t...
| The circuit described here is based on an unusual method of deterring a possible car thief. Shortly after it is started, an engine fault is...
| Although designed in the first in-stance for use with the universal digital meter which was published in Elektor 45, this circuit for an aut...
| This circuit is intended to give clear warning when it is time to replace the stylus in a record-player car-tridge. The unit indicates the `...
| When housewiring, the addition of an extra switch and light to an ex-isting circuit using the same power supply point would not normally cau...
| A frequency range of 0.1 Hz to 999.9 kHz, a choice of CMOS or TTL output levels, and an accuracy/ stability which is limited only by that of...
| The following simple circuit should prove a useful safety aid to motor-cyclists. In contrast to car drivers, motorcyclists generally only ha...
| If one wants to measure a voltage which is greater than the range (full-scale deflection) of a meter, there are two things which can be done...