3.3 V adapter – oops

With more and more stuff running on 3 V, I decided to make a quickie adapter for the very nice SparkFun 5V-from-an-AA supply that lives on my bench.  Then I’d have which ever voltage I needed right at hand.

Just a 3.3V reg with 0.1″ male and female connections – simple as could be.  Until I tested it and found I’d wired the input of the regulator to the female side.

At least I found it before I potted the wiring on the bottom in epoxy…

A little later:  The regulator is replaced and it all works fine.  There will be no need to discuss what the alcohol I used to clean the flux from the repeated solderings on the bottom did to the pretty labelling, or the jelly-side-down incident with the potting epoxy.

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