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Wow! You did some incredible work there, @jmacz ! Outstanding! 👏 After arriving back home, I searched and searched, but not a single MacSD to be found! However, I searched the MacSD website and found this page with STL files. https://macsd.com/files.php I downloaded the "Standard Mounting...

Thank you very much for the follow-up. I’m outside the home for a few hours right now, but when I return home I will search for another MacSD to see if I can give you an answer. Most of my Mac’s are at the office, and I may have taken the spare MacSD units there too. I will tag @YMK in case he...

I believe strongly in helping out my fellow vintage Mac enthusiasts as much as humanly possible, in large part because I have the “do to others as you would have them do to you“ philosophy. I myself have a lot of help through the years, so when I have the ability to help someone else, I want to...

Model number is SyQuest SQ100, so you should check EBAY regularly for that. In the past, I was able to find rare things through persistence, although I've not done that for a number of years now. Even so, I did search Craig's Lists too, as I have family in California which helped me out with...

Yes. Desolder the flyback. Remove it. Examine it. Put it back. Resolver it. Test. If the flyback is bad, you're dead in the water without a replacement because the LC575 A.B. Flyback cannot be used. @Kay K.M.Mods confirmed that in the past. Now if pushing on the analog board creates...

Professor Lund, I've spent a number of hours on this, both yesterday and today. This issue has become really complicated due to Mouser having killed off the right caps, so this post is long and messy as a result. Just to correct and clarify your opening post, the Big PCB on the 400K drive...

Congrats! (y) You can see all the hot areas of the Analog Board and some temps from one of those resistors here: But honestly, even at 105°C, those resistors are not super hot. The 3W and 5W resistors are made to get hot. They can get upwards of 200°C actually, in accordance with their...

@alxlab Thank you so much for that link! Uniserver was a significant contributor of helpful info pertaining to our hobby in the past, so I’m pleased to see it was he who provided that crystal clear answer. I’ve actually tried to contact him through the years, but he sadly has become...

I was hoping @techknight might know that because I do not, and sadly, there is no schematic of the CC A.B. available. Not "primarily," no. The larger the body, the higher the wattage and more heat that is dissipated via the sheer side of the body, not the legs. Of course, if the resistor body...

You leave an SE/30 switched on 24/7? (I realize that the brand new MaciNap from @YMK makes that realistic without harming the SE/30 over time, but I suspect you don't have one of those yet.)

I'm a bit of a party pooper in that I don't see many reasons for networking an SE or SE/30. Yes, a super rare person might think it fun to run it as a server (with a good screensaver, of course). But aside from that, you don't need to use it for FTP or similar file transfers, because I...

@Volvo242GT Just an FYI, but if you or any of our fellow HP calculator lovers want to research a log of great calculator info, check out the HP Museum forum here: https://www.hpmuseum.org/forum/ That's not to say we can't or shouldn't talk about them here. I just link to that forum because...

The site is working today, but even though I have the site set to the Japan region (where I live), I am getting the same message... That indicates it may not be sold anywhere, which is very odd. Swapping out the caps is going to take time because the ones in my cart originally were the best...

Solder joins for these two components look "factory" done... But these solder joints look either compromised or someone desoldered them and resoldered without flux... The problem is that there is no Schematic for the CC Analog Board, so problem (burned) components need to be traced by hand...

Very interesting. Thank you for the photos. Certainly looks like DP6 and RP15 have been compromised due to heat. But resistors RP23 and RP8 are raised up off the board, and yet the board directly under them is charred. Very odd. Not sure if he'll reply, but I'd like to ask @techknight if...

I've never touched those on my board. Maybe if you could share some clear photos of that area, I could better comment about them. Maybe they are just dirty and not burned. Put some IPA on a tissue and wipe them to see if the grime comes off. If it doesn't wipe off, they may have burned. But...

Professor Lund, Great to see you posting here on TinkerDifferent! I was trying to swap out capacitors in my two Carts after reading your post, but suddenly the entire website shutdown... I guess I will need to wait until tomorrow. Tariffs have wreaked havoc across all my Mouser Carts, I...

@TechnikTobi Welcome to TinkerDifferent! Congrats on doing the Beefy Component Upgrade and for heat sinking your DO-201 Zener Diode! I enjoyed looking at your photos. Should be interesting to see how long the superglue holds that heatshrink atop those heatsinks. Anyway, I'm glad you used...

A fellow HP calculator fan! You might find my calculator collection of interest... https://www.flickr.com/photos/66071596@N00/albums/72157699805228815/ My 48GX, in particular, is somewhat unique in that it has a 128KB FRAM card inside which requires no battery. Useful for installing Meta...

Bless you, friend! Please let me know your Paypal donation account so I and others can say a little thank you for your kindness to the community! Correct. Here's a short video (no sound) that shows one of my rusty HDD drive bracket, showing it from all sides... At the 6 second mark you can...