Digital modulation has a lot to answer for. Although the spectral efficiency of communications systems has improved, many signals resulting from digital modulation have significant power variation. In ...

VFD displays are beloved for their eerie glow that sits somewhere just off what you’d call blue. [mircemk] used one of these displays to create an old-school VU meter that looks straight out of a ...

Fortunately, if you’ve ever needed to test the voltage on your USB-C devices, there is a tool for you. There are quite a few USB-C voltage meters on the market, including one from one of my favourite ...

The government should require power companies to provide clear visual displays when they install smart meters in homes, says a report. All houses are set to have ...

The circuit was designed to create a low cost frequency meter that will cover the range of 1 Hz to 1 MHz with a digital indication using three 7-segment displays. 7805 – a 3-terminal 1A positive ...

[IronJungle] got around to putting together every tinkerers favorite project: a clock with a strange way of displaying the time. For his clock, [Jungle] took a trio of voltmeters and turned them into ...

Featuring a 51-element tricolor LED meter movement and a three-character digital display, the DNC-PS700-010 pressure differential meter accepts a 0 to 10-in. w.c. pressure. The instrument includes a 4 ...

From smart meters to prepayment meters, Economy 7, Economy 10 and standard meters, here's what you need to know about gas and electricity meters to help you save money on your energy bills. With over ...