Special thanks to @StamatisX and @imsolidstate for great technical advice! 330W AC adapters were purchased new for $30 USD each on Amazon. Required tools and components: 40A 200V bridge rectifier (Mouser - Part #: 821-GBPC4002) Electronics project box (Radio Shack - Model: 270-1809 | Catalog #: 270-1809) Female Spade Terminals (Radio Shack - Model: 76-FT12L | Catalog #: 55048637) Block Terminal (Radio Shack - Model: 274-680 | Catalog #: 274-680) Wire nuts or push connector