It's not glue and paper. It's tape. I can only say that if you do enough of them, you'll figure it out. At least that was my method of learning how to get the copper out of them. My yard will accept the copper as #2 and they don't seem to mind if there is a little residue on the wires. The ferrite goes in the coffee can with my screws.
I'm currently saving up the little transformers from electronics to do a little "research" on the best method of dealing with them. I started to wonder if there was really enough copper on those things to make it worth it to strip them down, or if I'd be better off tossing them in with my motors. When time permits (and I get enough weight) I'll pull them apart and see what I get relating to the copper and ferrite. The inductors and such get stripped down, since they are easy enough to do.
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