Re: Power - what are options?
If you want to be more adventurous, you can build a lamp controller for pretty cheap. I built a small one out of car lamps supplied by a 6 volt battery for about 30 dollars canadian. It can produce about 20 amps which is good enough for copper and nickel. For chrome I built two larger ones (30 car halogen lamps each) supplied by a 12 volt marine batteries. Together they produce 400 Amps. Construction cost about 400 dollars.
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