Amp Rectifier Aluminum Housing DIY Welder etc 13197

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  For sale is a 300 Amp Silicon Controlled Rectifier (SCR) Assembly for
  use in arc welders and other high-current equipment that use DC.
  Unit comes mounted in an aluminum housing.  This is a complete 300
  Amp rectifier assembly that solves problems with mounting, cooling
  and isolation of rectifier plates.  Connect incoming AC to the input
  connections, and collect rectified DC from the two isolated aluminum
  output plates. One OR three phase.