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RE: Ultraperm 80

Didn't think it was quite 25 years ago, but I did buy four or five sheets at about $4 each. I think it came from Electronic Goldmine, which also sells PC drill bits and such (my main need at the time). Anyway, I'm sure I remember looking this up on the 3M site and finding specifications that appeared to describe it as a product of theirs. They do still sell EMI absorption materials, but not this one. It's a mystery :)

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