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.
Suitable for the use with sensors, this circuit from National Semiconductor appears in other...
The circuit presented emulates an OR gate with the LM3900, operational transconductance amplifier....
This circuit has a very high input impedance and a very low output impedance. We found it on a...