meirman wrote:

Is it necessary to clean the enamel from enamelled wire before
soldering it?

I have a vague recollection that I read that it wasn't, and I only
have a couple little stubs that I'm afraid will beak off if I move
them around at all. (These are part of the 110volt winding in step
down transformer.)

Meirman
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acetone ( fingernail polish remover).