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.
Found in General Electric documentation from the 1980s, this circuit generates signals that depend...
I found this circuit in a Popular Electronics from November 1999. The magazine is no longer...
We found this circuit in an American documentation from the 90s. The circuit applies to vehicles...