This circuit with the ULN3784B appeared in the October 1984 issue of Radio Electronics magazine. It can typically be powered from 9 to 24 V.
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...