Single junction transistor time relay circuit 4

.Single -junction transistor time relay circuit four

It is actually a JSJ-101 time relay circuit. It uses an auxiliary pulse
power supply circuit. The repetition period of the auxiliary pulse power supply is shorter, and the length is controlled by "short", which is beneficial to improving the delay accuracy.
    Adjust the potentiometer RP to change the delay time. The delay range of this circuit is wide and can be adjusted from 0.02s to tens of minutes
.