This circuit will blink two mains connected light with relay. Very simple circuit with transistor based astable multivibrator. Youtube-video: https://youtu.be/L0NyyBNreSc

All kinds of electronics
This circuit will blink two mains connected light with relay. Very simple circuit with transistor based astable multivibrator. Youtube-video: https://youtu.be/L0NyyBNreSc