More about amplifier (484)

1-02-1980 | aerial amplifiers elektor february 1980 — 2-27 Aerial amplifiers are frequently used to try to improve the sensitivity of an existing rece...

1-09-1979 | The increasing attention being paid to digital methods of audio signal processing has led to a search fo r ways of using output transistor...

1-07-1979 | The basic principle of a current dumping amplifier has been de-scribed previously in Elektor (see Elektors 8 and 21). To recap briefly, the...

1-07-1979 | A high quality servo amplifier can be built using only one IC and a handful of passive components. The SN28654 (Texas Instruments) contains...

1-12-1978 | Although the concept of the pulse-width modulated or `Class-D` audio amplifier has been known since the late nineteen-forties, there has b...

1-07-1978 | Stereo headphones are usually connected to the loudspeaker outputs of the power amp via an attenuator. Although this represents the cheapes...

1-07-1978 | It is possible to reduce distortion in r .f. amplifiers by employing negative feedback. When using this technique, however, it is important...

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 | Power FETs have been used in a number of Japanese audio amplifiers for some time now , and indeed were discussed in Elektor No. 14, June 19...