- Published in issue 3/1990 on page 41
Power line monitor
Most of us are aware that computers and other digital systems can go haywire just like that. If neither the hardware nor the software can be blamed for the hang-up, spikes on the mains voltage are the most likely cause of the trouble. The power line monitor described here enables you to detennlne whether or not spikes occur frequently on a particular mains outlet, and whether or not digital equipment needs to be powered via a mains filter to reduce the risk of hang-ups or total break-downs.