• 0 Posts
  • 173 Comments
Joined 2 years ago
cake
Cake day: June 22nd, 2024

help-circle
  • The head appears to be sandwiched between two layers of metal.

    Someone has bent the lid of the hdd, the other side you’re seeing is the reflection on the disc surface

    The right hand side has a random piece that has shadows and depth that makes it look deeper than the disk depth on the left.

    For me the shadows and reflections look consistently and reasonable. E.g. the reflection of the metal arc on the right hand side ought to appear thicker than the metal of the arc due to the perspective.

    Also what is that foam cutout over the disk? I have never seen that on drives I have opened.

    No idea what it’s for, but I’ve already seen that in an hdd I’ve opened.

    Ps: the downvote is not from me



















  • Much, maybe all, of Mexico supplies single phase power via 2 phases from three phase power. In the US that is known in the power industry as “network power” and is usually 120/208 volts. Now 208 volts sucks. But to get 240 volts from such a configuration, you’d have to have 138.5 volts on line to neutral, and that is a bit too much for most things that want 120 volts. In Mexico they have chosen a compromise where the L-N voltage is just a little high (127 volts) and the L-L voltage is just a little low (220 volts).

    electronics-lab.com