On Thu, 14 Jan 2010 14:08:04 -0600, cavelamb
wrote:
Jim Thompson wrote:
JF
Didn't the OP want dimming?
...Jim Thompson
A "quicky" is attached ;-)
...Jim Thompson
I might try that one on my sailboat...
Caution: I didn't have time to elaborate on protection schemes. If
an alternator source is involved, add a series diode (to keep negative
transients from creaming the LM317), plus a series R and a zener or
TVS to ground to catch the positive ones.
(Dropping resistors were calculated based on white LED's (3.4V nominal
forward). Adjust accordingly for other colors.)
...Jim Thompson
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I love to cook with wine. Sometimes I even put it in the food.