| Temperature measurement circuits have been described on several occasions in this magazine. Although pretty accurate, these circuits we...
F. Hueber (26)
| High-frequency signals cannot be measured with standard voltmeters or multimeters. Such voltages, which are commonplace in receivers,...
| Testing and faultfinding of audio equipment and low-frequency test instruments is all but impossible without a good signal generator. T...
| It is well known that the frequency of a crystal oscillator depends to some degree on the ambient temperature. AIthough this is often...
| If, for whatever reasons-health, competition-you jog, cycle, row, you will know that after a certain amount of time your pulse beats...
| In audio engineering there is often a requirement for a filter that either passes or blocks certain frequencies or frequency ranges. This re...
| Sometimes you wish you had an electronic magnifying glass to do a really accurate voltage measurement, or watch voltage fluctuations withi...
| The output stages of many car radio/cassette players have no switch-on delay for the loudspeakers. This causes annoying clicks when the...
| Although many older telephone sets are electrically and mechanically perfectly sound units, their speech quality is poor compared with t...
| When, in an electronic circuit. light is converted into electrical sjgnals, use is normally made of photo diodes, photo transistors or li...