Elektor Team (12038)

1.07.1978 | Although vital for satisfactory operation of the vehicle, the car battery is often taken for granted and rarely receives adequate main-tenan...

1.07.1978 | Although IC voltage regulators have now largely displaced discrete component designs, this circuit offers a considerable cost advantage over...

1.07.1978 | For anybody who wants the most sophisticated type of burglar alarm: what about Radar?! Philips/Mullard supply a Gunn oscillator module, type...

1.07.1978 | This Voltage Controlled Oscillator (VCO) uses only two TTL gates or inverters, so it may prove useful in digital circuits where one or more...

1.07.1978 | This IR receiver can be used with the complementary transmitter described elsewhere in this issue. The IR signal is received by photodiode...

1.07.1978 | This amplifier has been specially designed for use with `alternative energy sources` such as solar cells, biological fuel cells, etc. These...

1.07.1978 | This circuit can be used to generate an up-down staircase waveform with a total of 512 steps per cycle. ICl and IC2 are two four-bit up-dow...

1.07.1978 | Calculating the correct RC values for high- and lowpass filters can be something of a chore and is often regarded by amateur constructors as...

1.07.1978 | Calculating the correct RC values for high- and lowpass filters can be something of a chore and is often regarded by amateur constructors as...

1.07.1978 | The 723 is a very widely used IC regulator. Hence the following cir-cuit, which is intended to reduce power dissipation when the 723 is used...