On Wed, 27 Apr 2005 12:11:34 -0500, "LB" lb put finger to keyboard
and composed:

I have pr JBL Platinum PC speakers but no power supply. Power conn shows
12.0 volts, 1.0 amp.

No polarity shown for barrel connector. Which one is +? Inside or barrel?

Open up the speaker and look for a filter capacitor. The polarity of
the cap should tell you what you need to know.


- Franc Zabkar
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