Anything is possible, however, I think you're suffering from the "mea culpa" syndrome. I'm no engineer or scientist but I don't think you're to blame. My guess is that nearly everyone on this forum has had some sort of equipment failure, and I doubt that anyone is personally responsible for it. Things break down, things wear out, but that's not the same as negligence. I'll let others give you the scientific versions, but I think leaving your Regenerator at 120V is not the culprit. Don't lose any more sleep!
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