Good tip here, going to expand a bit...

I've taught a few non-ee folks over the years this that happen to ask so as not to have to junk something for a lost power supply, but just ensure the power supply puts out as much power as the previous unit to meet the amperage demand (ie. 2A requires 2 amperes minimum), matches voltage (5V, 7V, etc), and obviously the plug form factor/size, usually the round type, in mm. Ebay is a good source for replacements, or a goodwill.

They're mostly interchangeable as long as those match. Used to buy lots of things at a swap meet as a kid and mix/match in missing power supplies for a deal after I learned how ohm's law worked in middle school. Still do with used electronics on ebay.

-mb


On 12/01/2014 11:49 PM, Brian Cluff wrote:
If it's just using the common connector that everything seems to use these days, I just picked up a 6A power supply for $7.85 from amazon to run the water pump on my immersion circulator that would do a really good job, and because it's over rated for the device it shouldn't even burn up no you.

There are others available for slightly cheaper, but I prefer to avoid wall warts so this is well worth the few extra cents.

http://www.amazon.com/gp/product/B003TUMDWG

Brian Cluff

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