Removing Insulation

Radio Record, Volume III, Issue 30, 7 February 1930, Page 40

Removing Insulation

"THE common method of removing the "insulation from the wire by scraping with a knife is not advised, as both the knife and the wire may be damaged. The knife edge is blunted -. by such use, and quite an appreciable amount of copper conductor may be cut away. The best method is to untwist the covering with the fingers until the required amount of wire is bared, when the loose ends.may either be cut off with a knife or twisted round the wire out of the way. In the case of double-coyered wire, owing to the fact that the layers of insulating material are wound in opposite directions, the ends may. be tied: securely in many cases. Enamelled wire, which causes quite ‘a large amount of trouble to some amateurs, may be quite easily cleaned with a small piece of emery paper. . Sufficient use should be made of the emery paper just to remove the enamel, as it is quite possible"to considerably reduce the gauge of wire by overdoing the operation.