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post #9 of Old 02-07-2010
eherlihy
Learning the HARD way...
 
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Quote:
Originally Posted by eherlihy View Post
Using a set of diodes, and a DPST switch, you can reverse the polarity going to a fixture with two bulbs, but this requires using the negative lead for one circuit as the positive lead for the other...
Ooops... I meant to say; "Using a set of diodes, and a DPDT switch..."

Here is a great schematic, thanks to Bebi Electronics: On the left, how this is done with filament bulbs, On the right, how this COULD be done IF the Lopolight fixture were designed (wired) to work with only 2 leads.


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USCG Licensed OUPV Captain, ASA 101/103/104/105/106/118 Certified Instructor - Also certified in Recreational Marine Electrical Systems

Last edited by eherlihy; 02-07-2010 at 09:58 AM.
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