I understand how that would allow it to fade to off, by varying the discharge rate of the cap, but how does that allow for slow turn on. The cap doesn't limit anything passing through.
That's not my area of expertise (hence my question) but I've done just that make constant lighting circuits in my model trains and they come on immediately and then turn off slowly after I remove track power.
Craig
My wife says I can't do sarcasm. She says I just sound like an a$$hole.