Is this copper wire? (Photos attached to post)

**IdahoScrapper** · 08-08-2015, 05:35 AM

Your weights are off because it actually is a mix of aluminum and copper, though not enough copper that you'll get anything more than aluminum price for it.

Not sure why people call it varnish, but this might help you.

https://en.wikipedia.org/wiki/Copper...aluminium_wire

As for microwave transformers, I've come across a few where one set of windings is aluminum and the other is copper.

I use a cutoff and score where the weld is, then finish popping it loose with an air chisel. Then set it on the vise and use the air chisel to drive the steel out. I really should make a video of this but I doubt I have enough ambition.

**NHscrapman** · 08-08-2015, 06:23 AM

Originally Posted by IdahoScrapper

Your weights are off because it actually is a mix of aluminum and copper, though not enough copper that you'll get anything more than aluminum price for it.

Not sure why people call it varnish, but this might help you.

https://en.wikipedia.org/wiki/Copper...aluminium_wire

As for microwave transformers, I've come across a few where one set of windings is aluminum and the other is copper.

I use a cutoff and score where the weld is, then finish popping it loose with an air chisel. Then set it on the vise and use the air chisel to drive the steel out. I really should make a video of this but I doubt I have enough ambition.

it's not the wire itself
when making a motor dipping the unit in a vat of varnish is pretty common industry practice
at 3:00

The one in the upper right of your picture looks like it may be AL
AL windings tend to be thicker, really thin AL wire cannot hold amperage and heat needed for a motor