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Found 4 results

  1. I have a Hard Disk 20SC external SCSI drive enclosure that has a SCSI ID selector switch on back. Because I am using a non-stock IBM DGHS 4.5GB drive inside, I've left the SCSI ID select switch cable disconnected. But I am eager to change the SCSI ID on the fly. Here's a photo of the drive label, showing the SCSI ID jumper settings: I believe the precise jumper settings follow what is shown on page 17 of this PDF. And here's a photo of the inside of my HD20SC (a still image from my PSU recapping video):
  2. I am currently editing a forthcoming video on the Apple Hard Disk 20SC. The SCSI drive mechanism I use with my 20SC enclosure is not stock, so I am curious about the sound of the stock drives. Would any of you 20SC owners who still have the stock 5.25" Seagate ST-225N drive (photo below) be willing to record the sound of the drive spinning up and running for several seconds? PC versions in an old PC should sound the same, so you could record that audio, I suppose. Photo Source You do NOT need to open the HD20SC to record the audio. If you do kindly record the aud
  3. Just uploaded my Apple Hard Disk 20SC recapping video, which also covers the 40SC, 80SC and 160SC since they all use the same SONY CR-43 PSU. Check the text description for a Mouser Cart and useful info. At the end, I do a boot test with a 2015 15" MBP.
  4. I'm in the planning process to recap the SONY PSU housed inside my Apple HD20SC external hard drive enclosure. (I might make a video.) I've got a Mouser cart filled with mostly Organic Polymer Aluminum Electrolytic capacitors for that PSU (see below), which have very low ESR down to between 12mΩ and 43mΩ. There are many benefits to low ESR capacitors, and the life rating on them is very high compared to regular aluminum electrolytics. But my concern is that the output of some switch-mode (switching) power supplies can ring if the ESR of the output capacitance is too low (as per the data sh
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