| Despite its surprisingly simple hardware design and construction, the superb frequency meter / event counter described in this article coupl...
| Despite its surprisingly simple hardware design and construction, the superb frequency meter / event counter described in this article coupl...
| This special timekeeper records individual time periods and adds them together to produce a total time. The circuit uses a real-time clock d...
| This project is simple to build and use yet accurate enough to provide a count down from any time interval anywhere from ninety-nine minutes...
| Although our active loudspeaker system was completed with the recently published subwoofer and associated power supply, we have added a litt...
| As opposed to most timer circuits, this month’s Mini Project is intended for very long periods. A switchable divider chain using two 4040 co...
| This compact stabilised power supply was specifically designed to obtain the best performance from the recently described subwoofer that for...
| This processor-driven automatic fan controller does not just run in parallel with the toilet light, but instead allows the user to adjust th...
| As with most small enclosures, the bass response of the active 2-way loudspeakers described last month has its limits. The compact subwoofer...
| The 2-way active loudspeakers described here are primarily intended for use with a PC, but could in principle be used in any other ‘medium-f...
| As demonstrated in this article, a simple test instrument is sufficient to unravel the mysteries of the cryptic and impossibly small print o...