2.8.10

N64 Power Supply


I was cleaning out my box of cables today and found a power adapter for a Nintendo 64. I don't have the N64 anymore and was about to trash the power adapter when I realized that it has 3.3V @ 2.7A and 12V @ 0.8A outputs! That seems suiting for a fixed regulated bench power supply for micro-controllers. I already have numerous power supplies, but what's the problem in having one more to throw around? 


The worst part with working on Nintendo products is that they use security screws in almost everything. I trimmed the case a bit to aid in removal. Once the screws are out then you can start drilling the case.


There is some empty spaces in the case that allows enough room for the banana connectors to fit. I retained the 3/4" spacing for the banana connectors so I can use my existing double banana plugs. I used crimp connectors on the banana jacks so that I didn't need to solder directly to the terminals, which allows me to remove the terminals if I need to later on.


The connections from left to right are ground, 3.3V, and 12V. You can remove the N64 connector if you like, but I left it on. If you remove it, you should retain the capacitors on the outputs. The actual voltages I measured were 3.55V and 11.22V, which is close enough. I could have added a power switch and an indicator LED, but I didn't feel like it.

These power supplies are often found at thrift stores for relatively nothing. Add some banana jacks and you have a dual regulated power supply for 5 - 10 dollars. Add an LM317 and a potentiometer to the 12V output for an even sweeter deal. (Maybe I'll do that next time)


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