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Thanks for the suggestion guys. I think I'm looking for more of a permanent solution, maybe part of a product down the road, so it must be low cost, vibration-proof and very adequate.
Did some research on the web last night, and the 12V power supplies/chargers for cell phones and MP3 players use an IC chip and a couple of capacitors, pretty compact. While MP3 players require more current, they operate on the same principle but with a more robust IC. I've got an old cell phone charger that I'll take apart and take a look. Will post a pic and see why they range from $.99 to $20.
Sherwood
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