When [Tahmid Mahbub] recently reached for his ‘Lavolta’ BPS-305 bench supply, he was dismayed to find that despite it being a 30V, 5A-rated unit, the supply refused to output more than 15V. To be fair ...

Many problems with logic, data and even audio don’t have an off-the-shelf solution, which means that some device must be built from scratch as a solution. Many of these devices, whether a simple OR ...

We’ve all seen those cheap bench power supply units (PSUs) for sale online, promising specifications that would cost at least a hundred dollars or more if it were a name brand model. Just how much of ...