C9 is there for extra security persay. It doesnt affect the output but can regulate the current in the circuit.
As for changing 4.7uF to 10uF. The main reason I do not have it as 10uF is because it doesnt give me -10V as an output. Instead it gives me -3V if 10uF. I only get -10V when that cap is 4.7uF.
Edit: This works if I use a 1.48nF cap instead of 4.7uF.
As for changing 4.7uF to 10uF. The main reason I do not have it as 10uF is because it doesnt give me -10V as an output. Instead it gives me -3V if 10uF. I only get -10V when that cap is 4.7uF.
Edit: This works if I use a 1.48nF cap instead of 4.7uF.
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