TVs are generally easy to use, thanks to their intuitive operating systems and well-designed remotes. So, even if you're using a TV from an unfamiliar brand for the first time, you probably won't have ...
This simple and cheap circuit is not just for Christmas! There are just two resistors, a small-signal transistor such as a BC547, one ‘flashing’ LED and a string of ‘normal’ LEDs. The flashing LED ...