Yahoo Answers is shutting down on 4 May 2021 (Eastern Time) and the Yahoo Answers website is now in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
1 Answer
Relevance
- RobsteriarkLv 71 month agoFavourite answer
Let me Google that for you:-
Number two is scrap copper with impurities. Copper windings with red lacquer insulation are not pure unless you can use a solvent to completely remove the lacquer. You also need to cut off any bits with solder on them.
Still have questions? Get answers by asking now.