I got bored recently and took a few hard drives as far down as I could (thanks to past posts here, which were extremely helpful), and now I'm wondering what I actually have. To start, many of the covers are two-ply but after separating the layers I found they are both magnetic. I was expecting at least one to be aluminum, but is it possible they are both steel?
Next, the photos. 1. What grade are the components? Is the ribbon connecting them valuable at all? 2. These arms have coils that are either copper or the shiny, slightly gold colored metal pictured. What metal is that? The arm is shown just to show where I pulled the coil from. 3. I found the rhodium pickups on the end of the arm, but what are these wires? They are metallic, so maybe nickel? They are silver colored on one side and the other is either dark brown or gold colored, both shown in the photo. 4. These were connected to the motors, any value here? They seem to be gold.
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