Hi Greg, I reckon that model aircraft BEC units (battery eliminator circuit) like this one would make fine power supplies for PDA/PNA's and some are selectable for either 5V. or 6V. output.
Just make sure you are buying a 'switch mode' unit which have an efficiency of around 90% : http://www.aircraft-world.com/shopexd.asp?id=4637 [1] Aircraft World are in Japan but post to Australia for a few bucks. There are similar BEC's on eBay for less than $10. Regards, Bernie. http://blipmap.walsys.net/NEWSOUTHWALES/index.html [2] www.gliding.com.au Links: ------ [1] http://www.mail-archive.com/[email protected]/msg18569.html [2] http://blipmap.walsys.net/NEWSOUTHWALES/index.html
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