| This article is one from our 90s collection, the articles are downloadable as a PDF for all our members. Although the information we have on...
More about technology (448)
| The charger is designed to charge NiCd batteries with capacities of 150-4000 mAh. A potential 5 V higher than the nominal voltage of the...
| A Bessel filter has a fairly constant transit time (delay) over the pass band, but its amplitude characteristic starts to fall off rather...
| A small quartz clock that is powered by a 1.5 V battery provides a simple means of determining the capacity of a NiCd battery. The circui...
| The Linkwitz-Riley crossover network is known for its homogenous performance and constant amplitude. The transfer is identical to that of...
| Even with a good frequency meter, it is well-rugh impossible to set two frequencies to a fraction of a hertz. It can, however, be done w...
| Push-pull oscillators have an important advantage over conventional oscillators: they provide appreciably more power at the same supply v...
| The audio amplifier in a battery-operated scanner or walkie-talkie is often on standby for long periods. Of course, in that state it draw...
| Since Ferranti have taken their well-known ZN436, a 6-bit digital to-analogue converter, out of production, the ZN426 has 'replaced' it....
| Micro Linear's ML2035 monolithic programmable sine wave generator IC is used here without the usual microcontroller to supply the frequenc...