Although there are pre-packaged devices to regulate low DC voltages, it is possible to build a voltage regulator from zero. The Zener diodes manage to lower the voltage; they are low-intensity regulators by themselves. In more robust power supplies, they act as a voltage reference to control one or more transistors that handle more current. To illustrate how a Zener diode … [Read more...] about How to Make a Voltage Regulator?
Sports & Fitness
Do you sweat a lot every day? When you have a beautiful sweater, and you sweat a lot, stains can indeed form under the arms. It is hardly pleasant to have shirts that are so stained. Fortunately, a few straightforward tips exist to make these dark circles disappear (or at least reduce). Here are some anti-perspiration stain tips. 1. Use white vinegar against sweat … [Read more...] about How to Remove Sweat Stains From Clothes?
Your child's hockey equipment doesn't smell very good ... After a hockey game, it is very typical for bad odors to settle in the bag, on the clothes, and all over the equipment. Sweat and humidity do that, and of course, it's never pleasant! Want to get those bad smells out? So here are some tips to combat that putrid smell of hockey equipment. 1. Empty the hockey … [Read more...] about How to Remove Odor From Hockey Equipment?