Using a period sensor, this circuit was found in the February 1986 issue of Radio Electronics magazine. The sensor is a Philips of the period.
This circuit is from a technical manual of the 80's. The operational ones are of the time like the...
The circuit that we give below has two possible applications: it can be used to control a lamp...
We found this circuit in a 1996 publication. Equivalent components can be tried, especially in the...