I've not used SCRs before.
I'm trying to make a circuit such that the LED1 will be on when the switch is closed after a long time (10 seconds or so) of being open (C1 and C2 are discharged).
But that the LED1 stays off if the switch is quickly opened and closed again (about 1 second of being open).
Not sure if C1 is needed or not ? I assume it is.
Is there an easier way to do this ? The LED could be a high power 1W, I would adjust R3 for that.
Any help would be appreciated.
P.S. I have updated the schematic on 2/12/2020.