| Although this Voltage Controlled Oscillator uses only two CA3130 op amps the linearity of its voltage/fre- quency transfer...
| Although this Voltage Controlled Oscillator uses only two CA3130 op amps the linearity of its voltage/fre- quency transfer...
| As described in last month`s article, the model cars are powered from the special race track, but steering and speed commands are p...
| When an operational amplifier is used in a negative feedback circuit its frequency response requires `compensation`, a high-frequency r...
| Readers may remember that a design for an automatic cal I sign generator was featured in Elektor a I ittle over a year ago ( Elekto...
| In response to popular demand, here, at last is a treble and rumble filter that can be used in irtually any hi-fi system to get rid of...
| Few things can so hold the attention of the serious audiophile as do loudspeakers. This applies with particular strength to those whose...
| In November 1976 the circuit was described of an ultrasonic intruder alarm, the `Al bar`. By slightly mis-using the ultrasonic transduc...
| Chomerics` 4900 conductive paint is a one-component, air-drying coating which will provide effective EMI attenuation when applied in a...
| Visitors to last year`s Hi-Fi exhibition in Duesseldorf, W-Germany, will have noticed something special on the Elektor stand: t...