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After reading your post, I searched Amazon Japan for one of those ER14505 batteries and found a cheaper price than you paid: https://www.amazon.co.jp/-/en/ER14505-Non-Rechargeable-Electrical-Equipment-Universal/dp/B08F1NBZ2M/ I see those are NOT rechargeable, making the cost of replacement...

@RetroTheory I certainly don't mean to detract from the main point of this thread, but in regards to your photo, it looks almost like you have that Mac in "dark mode." How did you accomplish that? It's pretty stunning. And what interface are you using for the naked CRT attached to your Apple...

If left off completely or if installed upside-down (such that it us UNDER the metal frame rather than on top of it), then yes, the heads would remain slammed against each other instead of "open" when no disk is in the drive. So, yes, that black piece is a critically important part. @billbucks...

I believe you’re referring to the black plastic piece that I am touching with my index finger in the photo below.

I always get excited when I see a non-Apple B&W CRT appear. There were no doubt hoards of them sold, but where are they all today? Were they all just thrown out because they lacked an Apple logo on them? Glad to see the previous owner of that Mirror brand FPD took good care of it...

Googling the part number yields nothing, but if the "4" indicates 4MB, then I assume it's a 16MB "composite" SIMM based on that chip at the top, lacking only the parity chip (which Macs don't need). But not all Macs play well with "composite" SIMMs, so keep that in mind when testing that RAM...

I suspect not. Neither Kay Koba's product page nor the original GitHub README say anything about the IIgs: https://github.com/markadev/AppleII-VGA/blob/main/README.md

Just wanted to update this thread with exact info from @Bolle about the Rev. 5 board changes: https://68kmla.org/bb/index.php?threads/macintosh-se-30-logicboard-recreation-thread-revival.39485/page-26#post-549970 "The pads on the two large PLCCs are longer now… especially on the 68882..."

I've seen a few "SmartPort" SD card drive products pop up over the years, and each time I wondered what advantages they had over the venerable FloppyEMU. It's often a cost advantage, not a feature advantage. Most of the SmartPort SD card drives are just that — SmartPort-only, with no means of...

Hearing the sound would be helpful because there are several. But for now... Flup sounds have various causes including disconnected cables: https://archive.org/details/mac_The_Dead_Mac_Scrolls_1992/page/n23/mode/2up?q=tick Chirp noises can be a bad CR5...

I strongly recommend a teardown so you can shoot photos for us of the head, both in the open-wide condition, and when clamping a disk. That would give you a better look too. Because if something is indeed bent, it's very hard to bend it back to the factory condition.

Yes, the Thunder 24/GT is indeed a Thunder IV GX 1152 without DSP, but I wonder what “slot E” refers to in you last screenshot.

What is “the site”? I just now did a keyword search in our Resources section for “Earth” and “Simearth” but I didn’t find any results, so I assume you’re referring to some other site?

@patters One may also wish to ask them why they only allow people an eyebrow-raising 40 min. to Edit Posts. They lock them down after that. So if you post something in the morning and then drive to work and a few hours later realized that you made some serious grammar or spelling errors, that...

Yes, folks, it's the Dark Side come to steal your hearts and minds with the newly released Matte Black Case & Keyboard Combo from Mark Jozaitis of MacEffects, and designed by Joe Strosnider of Joe's Computer Museum, Javier Rivera of 8BitTees / 8BitStuff / Javmaster, and Apple II legend "Plamen"...

The stock 575 boards don't have a ROM socket, but the good news is you can solder one in because the pads are there! So I did. And I did that because I received a compatible ROM SIMM designed by @Jockelill , which is rated for 55ns. It has some quirks in that I can't seem to boot from it, but...

I have the opportunity to purchase some OKI brand 60ns rated MSM514400D-60SJ RAM chips that would allow me to desolder my 70ns KM44C1000BJ-7 chips and do a swap. Not being sure if a mere 10ns of faster speed would really matter, I sent Mustermann a PM to gather his thoughts. If he feels it's...

I don't believe anyone is complaining about 24-bit addressing mode lacking the overclock. People who haven't tried it yet are just curious. And that's why I strongly encourage everyone to give it a try to see how great it is. And while Mustermann did kick off the project, you brought it to...

Very interesting. I have a 40MHz Turbo040 but I couldn't get it to work alongside my 33MHz Radius Rocket (040 with FPU, and 32MB RAM on-card), and my Radius Thunder 24/GT video card. My PSU is stock but recapped. I too have a BlueSCSIv2 installed (no spinner drive). However, I am able to use...

Yes, it requires 32-bit addressing "to do the overlock." You can switch to 24-bit addressing to run System 6 (well, not on my 575 board, but maybe on a 475?) or to use less memory in System 7.5.5 and below (why one would do that, I don't know), but when you do that, there is no overclocking...