Wow the engineering world with your unique design: Design Ideas Submission Guide This is an attractive alternative to bulkier ON/OFF switches for DC circuits. The circuit has a fairly simple ...

A flip-flop is one of the most basic digital electronic circuits. It can most easily be built from just two transistors, although they can and have been built out of vacuum tubes, NAND and NOR ...

Here’s your useful and beautiful circuit for the day — [New Pew]’s vibration sensor takes manual control of the flip-flop inside a 555 timer and lights an LED in response. Use it to detect ...