Power Supply on test bench

Cmndr Brain

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The kids have grown and I'm finally getting back into the arcade hobby. I am limited on space for a test bench. I would like to make a small "portable" rig. I have a 5" lcd already and from a previous post got the idea for a "suitcase" rig. My question is, what power supply would be best, an arcade switcher or a computer AT/ATX supply? The arcade ps has +5v @ 15Amps, -5v @ 1A and +12v @ 2A. The computer ps has +5v @ 20A, -5v @ .5A, 12v @ 7.5A and -12v @ .5A. The more universal ps would be the computer supply, but limited current on the -5v (last I remember this was usually only used on the audio amplifiers). The arcade supply is smaller and lets me fine tune the +5v w/ a pot adjust. Any thoughts from the community?
 
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Being able to easily adjust +5V, along with having convenient screw terminals, plus being smaller (you mentioned you are going for portable) makes a normal arcade "switcher" power supply seem like a no-brainer to me.

I would think that being able to easily adjust +5V is a must for a power supply that is used for testing purposes. For example, I have a board that wants 5.2V, no less. If you feed it less than that you get graphical glitches. If the board was tested in a setup that only offers +5V with no way to adjust it, it would seem like a faulty board.
 
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