Every Hot Rod should have a tachometer, and if yours didn't come with one you've got a ton of options. With a Benjamin as the budget, we decided to test seven models from Summit Racing to see how ...

The SpeedTalker DN (UI) DeviceNet shaft-speed tachometer converts pulse-train frequencies from a wide range of single-ended or differential, single-channel, or quadrature sensors into rpm units.

The circuit shown in the figure below will have a display reading of “1999” for an input frequency of 33.33Hz (equivalent to 1999 rpm). The 0.0477µF capacitor (C1) should have a ...

This tutorial will guide you through the process of building a tachometer around an Arduino. Tachometers are used to measure rotation rate in Revolutions Per Minute ...

RPM stands for revolutions per minute, and in cars, it measures how many times the engine’s crankshaft makes one full rotation every minute and how many times each piston goes up and down in its ...

With more and more new-car buyers choosing automatic transmissions over manuals, why do tachometers still have such a large presence on dashboards? The tachometer displays engine speed in revolutions ...

Have you tried buying a '68-'70 instrument cluster with the 140-mph speedometer and 8,000-rpm tach recently? More than likely, your wallet hurts just thinking about it. Today's treasured 140/8,000 ...