Skip to main content

Reply to "GRJ's Original DIY Constant Current PAX Car Lighting Module Files"

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

IMG_2990IMG_2992

Attachments

Images (2)
  • IMG_2990
  • IMG_2992

OGR Publishing, Inc., 1310 Eastside Centre Ct, Suite 6, Mountain Home, AR 72653
800-980-OGRR (6477)
www.ogaugerr.com

×
×
×
×
×