Originally Posted by ozzy214
Scrape it, I scrape the washing & dryers motor windings before I start to pull them out.
Just a wee scrape & you can see the difference in colour, when its copper its easy to see.
When its anodised Ali its a bit harder to see, thats when I pick a single wire out with the screwdriver, Ali breaks, copper stretches a little before breaking.
Then I check the broken end, Ali's silver, coppers normally a little darker or golder than the varnish coating.
Its actually working in my favor as people must be throwing out dryers without scrapping them because they think the motors got Ali windings.