How to judge the regulator is not pure copper

First of all; can tell you is copper or aluminum wire this problem is not very big, as long as you can achieve the capacity requirements for your use is a good product; just the use of different materials to; unless you pursue the perfect waste;

If you really want to confirm the appearance of the absolute can not be seen, the upstairs said that weighing that is impossible, unless the product quality is exactly the same just copper, aluminum points, only can

One, open the shell to see the coil there is a section of the coil is not around the copper wire place

Two, this place is the inner and outer layers of the connection; to find the connector;

Three, with a razor blade to scrape down on the true image of the white;

You buy a voltage stabilizer like this dealers will not let you dismantle it, buy it back to their own research it!