[Sublimistri]

after searching and searching I found a good way of doing this with things laying around the house.

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That tester will work, but I prefer the type I linked to before because it shows an actual voltage on the LCD display instead of a lit LED if the voltage is within some range. Note that these tester are not conclusive for testing PSUs, but good enough in a pinch, and certainly able to test fans.

Any 12VDC supply able to deliver 300mA will be able test most fans.

[Digerati]

That tester will work, but I prefer the type I linked to before because it shows an actual voltage on the LCD display instead of a lit LED if the voltage is within some range. Note that these tester are not conclusive for testing PSUs, but good enough in a pinch, and certainly able to test fans.

Any 12VDC supply able to deliver 300mA will be able test most fans.

[iammykyl]

Hi.

Been doing some testing and found a couple of old AC.DC adapters. Fans from an old computer. 1. from an old radio, delivers 6V. 600mA, fan runs at about third speed. 2. from an old telephone answer machine, delivers 12v 500mA, fans runs at top speed.