Just can't quite get my brain around this. This is not a "homework" question. I'm a hobbiest. I've tried to research it using web and books. Maybe this is one of those "duh" questions, but I just can't get it. Let's say I have: 24V supply Capacitor in parallel with a 16V zener 10K resistor between supply and capacitor/zener Capacitor is discharged to 8V In calculating time to recharge the capacitor, is the capacitor: a) charging through the 10K resistor toward 24V potential until it hits 16V, at which time it's limited by the zener? or b) charging toward a 16V potential through ?? resistance? or c) ????? Thanks Chuck Harkness -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics