I was reviewing your build again and I have noticed that second set of polarized CAPs are same physical size as 1st pair of your 25V 10uf Caps. You were saying earlier that you were only able to get 25V 10uF and 50V 10uF caps. The second pair of caps should be 35V 10uF or higher like the 50V 10uF. It seams that after this set of caps (middle pair of caps)things stops working. Try using 50V 10uF for the middle pair just as you are using them for the last pair.