This circuit for automotive use was found in American documentation from the 90s. The circuit uses common components today. The relay is 12 V.
This circuit was found in a 1967 Electronics World. SCRs are according the controller load,...
We found this configuration in an early 1977 publication. The PNP transistor may be the BC558 and...
This circuit of a Popular Electronics is intended to control a wiper. The circuit consists of a...