@gunrunnerjohn posted:I'm stunned that a 1,000uf cap fails and a 470uf cap works
@Rod Stewart posted:Bob, I too am shocked that the cap switch solved the issue. Clearly the smoking gun is the 1000uF cap
I couldn't stop thinking about this. So I built another board but did not solder in the cap. Instead, I inserted first the 470uF and bent the legs to get good contact, then applied power - working. Then I put in the 1000uF cap and bent the legs and it worked too!!
So you are both right - nothing wrong with the caps. I must have erred somewhere, twice, when soldering the components on both the first 2 boards. Reminds me of the saying, "I learn from my mistakes and can repeat them exactly."
I will test all the caps that I have left on this temporary board and maybe try to test the first caps that got blamed for the failure. I nipped off the legs to de-solder them but will cobble something up.
And the decay in the lighting after power off is noticeably longer with the 1000uF caps. Happy camper here. Thanks to both.
Bob