like tunggulametung said, you don't have to be specific. i used an ol' cheapo batt charger from sears, with 2Amps/8Amps switch, with it switched to 2 amps. then five 3/4" iron rebars and small gauge copper wires. i used carbonate soda (from walmart; brand name Arm and Hammer) for electrolyte and there you got it. just check up on it every 15-20 minute or so, depending how bad the rust is.
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