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 ...

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 ...

Power plants use indicators to monitor process parameters such as pressure, flow, temperature, voltage, current, and vibration. Unless a facility is relatively new, it likely has analog panel meters; ...

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 ...

Paired with the Digital Flowmeter compressed-air meter, the Summing Remote Display allegedly makes it easy to monitor air consumption from a convenient location. Via a pushbutton, the display shows ...

Editor's note: If you're like us and can't bear to part with that crusty old (but magnificent) analog meter, David Ashton offers everything you want to know about these gems in this three-part series: ...