[Coco] Benchtop Power Supply Recomendations Requested

[Andrew]

Despite the recommendation of Mike on using an ATX power supply, I would 
avoid that - mainly because it won't have current limiting. You want 
current limiting, and ideally voltage regulation. You want to be able to 
dial in the current needed, at the voltage you want - and have it only 
supply that much current (and switch off the power if it is exceeded) at 
a steady voltage (regardless of the current draw below your set point).

An ATX power supply won't have this. You can add it - but it isn't easy 
if you don't understand power supply design.

I don't know about it's quality or anything, but this supply seems like 
it might be decent:

http://www.amazon.com/TekPower-TP3003E-Adjustable-Switching-Digital/dp/B00PWMA4WA/

If you want some more options, just google "adjustable power supply" - 
look for a supply that can give you your voltage range (and a little 
more can't hurt), and output 2-5 amps (once the amperage level goes 
beyond that amount, prices start to get crazy). Look for the ability to 
adjust the output (voltage and current) - both "coarse" and "fine".

I should note that you might want to get more than one supply - or buy a 
dual output supply; they can be useful for certain circuits, depending 
on what you are doing.

Good luck!

-- 
Andrew L. Ayers
Glendale, Arizona
http://www.phoenixgarage.org/