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.
This circuit was found in an English magazine from 1979. The magazine no longer exists, but the...
We found this circuit in a PopularElectronics of 1993. The circuit generates signals whose...
This circuit was found in an English technical documentation from 1973. The circuit generates...