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 was found in Philips documentation from 1965. No information was given about the...
This circuit was found in a 1977 publication, but it can be easily assembled, although unijunction...
The circuit that we give below has two possible applications: it can be used to control a lamp...