How to build a $20 47A power supply

[stampy]

I was thinking of wiring 2 of the 47amp power supply's up. I'm no electrical engineer, so how would your house hold 120 volt circuit handle almost 100amps of power? arnt most circuits in a house only 15amps?

[whitrzac]

120v at 15amps is 1800 watts
12v at 100amps is only 1200 watts
120v at 10amps is 1200 watts..


at 100 amps, the wires might start to twitch when you turn it on...

[florianz]

great stuff!
I've converted a used 500w CP-Power-Supply (very cheap at ebay, sufficient for me), wich works fine. There's no need to spend so much money for a overpriced power supply. just go for used "brand"-stuff and you'll be ok, I wouldn't trust the no-name.