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Found 5 results

  1. 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 sheets of many switch mode controllers), so do any of you have a schematic? If not, have any of you used a large number of Organic Polymer capacitors in your vintage Mac PSU recap jobs with success? (I'm asking about power supplies here. Non-PSU applications don't matter much. Mostly those cases are a decoupling/bypass caps which hold up the voltage in times of voltage dips, and those caps benefit from very low ESR.) Here's my Mouser list of mostly polymer caps: C226: 22uF 35V, D=5.2mm -- (Mouser: A759BQ226M1HAAE075) C202: 47uF 25V, D=5.2mm -- (Mouser: A750EK476M1EAAE040) C222: 47uF 25V, D=5.2mm -- (same as C202, so get 2pcs) C109: 150uF 400V, H=32mm, D=25.8mm -- (Mouser: 860021383023) C110: 4.7uF 350V H=32mm, D=12.8mm -- (Mouser: UPM2G4R7MHD) C210: 330uF 16V, D=8.1mm -- (Mouser: RL81C331MDN1KX) C215: 470uF 10V, D=8.1mm -- (Mouser: RNE1C471MDN1) C213: 22uF 100V, D=10.2mm -- (Mouser: A759MS226M2AAAE045) C124: 2200uF 10V, D=12.7mm -- (Mouser: UHE1C222MHD) C209: 2200uF 16V, D=12.7mm -- (just buy the same as C124, so get 2pcs) CR-35 daughter card: C181: 100uF 10V, D=8.1mm, H=13.5mm -- (Mouser: RNS1A101MDN1KX) C182: 100uF 10V, D=8.1mm, H=13.5mm -- (same as C181, so get 2pcs)
  2. It took me a while but I finally got my SE & SE/30 Analog Board recapping video published to YouTube today. Safari users, note that you'll need Chrome or FireFox to watch it in 4K. Don't forget to watch it on YouTube so you can check out the links I put in the text description (click SHOW MORE to see all of it), including the Mouser Cart that includes all the capacitors you will need. Enjoy.
  3. I finally finished my video on recapping the SONY CR-44 PSU, which can be used in the SE and SE/30. The video is long but informative. A Mouser Cart is linked in the text description under the video (you'll have to watch it on YouTube to see that), for those of you wanting to easily purchase all the electrolytic capacitors required. You also find a link in that description to my SEASONIC PSU replacement video, for those of you who haven't seen that one either. There's still reason to recap the SONY PSU though -- it's fanless and dead silent when operating. If you have only 1 PDS card and no major upgrades, the SONY PSU, once recapped, is more than adequate. Enjoy.
  4. I made a new walkthrough video about replacing all the electrolytic capacitors on the MicroMac DiiMO 50MHz 68030 accelerator for the SE/30. I explain my choice of Niobium Oxide capacitors over tantalum, show the replacement, then boot and run benchmarks. The SE/30 shown has a recapped motherboard, recapped analog board, and SEASONIC PSU. The video is 4K but if you're a Mac user who loves Safari, you'll need Chrome to view it in 1440p or 4K. Also, it was sadly during the making of this video that my Epic Blunder occurred. My humble thanks to all of you who are so kindly trying to help me in that thread. I make videos for the enjoyment of it and as a way to give back to the community. I currently don't allow ADs on my videos nor do I have a Patreon account, which is why I've never earned any monetary compensation at all from my videos. (The down side of that is Google doesn't suggest my videos as well as videos with ADs enabled.) I make videos that I really wish someone else had made for me. Even though what you see in my videos isn't necessarily groundbreaking or unique (some of you are far beyond me in terms of troubleshooting knowledge, repairs and mods, for example), I simply am transforming into an easy-to-digest video what otherwise has been exclusively found in "text form" in forums like this. For the new generation of younger people who don't prefer to read, videos are becoming increasingly important. (Even so, I still get Millennials complain my videos are too long, so we can't please everyone. I prefer to be thorough rather than worry about the clock though.) My next video endeavor will be to show the recapping of an SE/30 analog board, and then I will have yet another video showing the recapping of the SONY PSU. Anyway, I hope this information is useful not only for you DiiMO owners but also for those of you who need to recap 5V voltage rails, as the Niobium Oxide caps I chose work perfectly for that, assuming you need 22uF. They come in other sizes though so give them due consideration in your recapping jobs.
  5. Has anyone tried replacing the two metal can electrolytic surface mount capacitors on the IIci cache card with tantalum equivalents?
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