More about design (647)

1-12-1995 | The amplifier described is intended as a practice unit for guitar players. Its power output is not sufficient (in most cases) for use duri...

1-12-1995 | A power supply is described whose output can be switched to the six most common output voltage requirements and which can provide a contin...

1-11-1995 | An analogue oscilloscope that is used for measuring slow processes has the drawback that the test time per scale division is relatively sh...

1-10-1995 | An amplifier is described which, after a tuning fork has been struck, gives a continuous 440 Hz tone (= International A), so that the user...

1-09-1995 | The medium Power HEXFET amplifier published in this magazine in December 1993 has one small drawback: It delivers 'only' 60 W into 8 Ω (o...

1-09-1995 | On much audio equipment, the headphone output is simply derived from the loudspeaker output via a series resistor: not a very elegant desi...

1-07-1995 | In spite of several reports published in the past year or so, there is no possibility of recharging flat dry batteries of whatever type. T...

1-07-1995 | Most proprietary subwoofers require you to be well-off and strong: the first to be able to afford them and the second to be able to lift t...

1-07-1995 | A microprocessor-controlled charger is described that surely meets the requirements of most users of NiCd batteries. It is fast, suitable...

1-06-1995 | A generator is described that, based on the MAX038, provides triangle, sawtooth, sine, rectangular and pulse waveforms.