This windshield wiper timer was obtained in an 80's Hands On. The transistor can be the BC548 and the relay is 12 V sensitive. The time is set to R3.
We found this circuit in a 1992 magazine, but it can be easily assembled today because the...
This circuit has been found in an old documentation, but can be used as input shield for current...
In the figure we have the circuit of a sweep generator obtained in an old publication. The central...