Another of the many tachometer circuits we have on our site. This one is from the September 1976 Radio Elecronics magazine. The circuit is connected to the platinum contacts of a car or to a sensor.
This circuit uses one of the first commercial transistors, availble in 1958, year of the...
The circuit presented is from 1994 and can be developed with more modern operators. We found the...
The operational amplifier used in this circuit from a documentation from the 70s is no longer easy...