This circuit was found in a 1977 Signetics manual. The 556 consists of a 555 double and the transistor can be the BC558. The circuit is suitable for automotive applications and the relay is connected to the horn.
This circuit was found in a 1977 Signetics manual. The 556 consists of a 555 double and the transistor can be the BC558. The circuit is suitable for automotive applications and the relay is connected to the horn.