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Analog Tachometer Calibrator Products
Accutach sells two analog tachometer calibrator tools that can be used to calibrate many tachometers used in many vehicles from the 1960s to the early 1990s.  One product is a single-frequency stand-alone calibrator, and the other is an RPM-selectable peripheral designed to be used with an old DOS computer with a serial port.  Please contact Accutach to discuss how our calibration products might be able to calibrate your tachometer.

Coming soon.  This calibrator can be used to calibrate an analog tachometer such as those in vintage Mustangs at an extremely accurate single frequency (RPM).  As the components inside of these old tachometers age and the values drift, they are in constant need to tweaking to keep them accurate.  This calibrator can also be used to debug broken tachs by driving them with a known signal.  This calibrator can not be used to repair tachometers that have lost calibration across other RPM ranges.  It requires the use of a well regulated 12 volt power supply, such as a charged car or motorcycle battery.  Click here to learn more.
 
This calibrator can be used to calibrate and repair analog tachometers such as those in Vintage Mustangs by generating an extremely accurate frequency that can be varied from 500 to 10,000 RPM.  It requires the use of an old DOS PC and a well regulated 12 volt power supply, such as a charged car or motorcycle battery.  Click here to learn more.