Archive for the ‘Hardware Development’ Category
Posted by jpluimers on 2025/02/19
Cool thread: [Wayback/Archive] Thread by @dosdude1 on Thread Reader App – upgrading storage from 512GB to 8TB on an M3 Max MacBook Pro (images at the bottom of this blog post: they are large):
Just finished my most difficult Apple Silicon storage upgrade yet… 512GB to 8TB on an M3 Max MacBook Pro! This was especially difficult, as it required installing around 100 extra tiny components to use the second set of 4 NANDs…
Because I didn’t have schematics for this model, I had to painstakingly hand draw this diagram to locate the correct position of each component, which I derived based on a schematic for a similar model. Definitely took a long time!
If I need to have a Silicon Mac upgraded, this is one of the people to keep an eye on and when needed visit [Wayback/Archive] Technical Support – DosLab Electronics.
Dosdude1 has been active in this field of work for quite some time. A nice article on earlier work is [Wayback/Archive] Collin Mistr’s Open-Hardware 2.5″ IDE SSD Aims to Bring Speedy Solid-State Storage to Vintage PCs – Hackster.io.
Via [Wayback/Archive] dosdude1’s Personal Web Server, Read the rest of this entry »
Posted in Apple, Apple Silicon, Development, Hardware Development, Mac, Power User | Leave a Comment »
Posted by jpluimers on 2025/01/30
Retro computing is wildly popular, and with the rise of low cost single-board computers (SBCs for short), both Apple //e and ][+ emulators plus extension cards have proliferated, based on Raspberry Pi (or even their RP2040 microcontroller based Pico), ESP32 or predecessor ESP8266 microcontrollers and others.
Some links for my archive:
Read the rest of this entry »
Posted in //e, Apple, Development, Emulators, ESP32, ESP8266, Hardware Development, Power User, Raspberry Pi, Raspberry Pi Pico, Retrocomputing, Software Development | Tagged: 3dprinting, Apple, appleii, retro | Leave a Comment »
Posted by jpluimers on 2025/01/02
For my link archive: [Wayback/Archive.is] Converting Phono Inputs to Line-Level
It shows for some receiver models how to have the Phono input signals bypass the preamplifier (preamp) so they effectively become Line level inputs and there is no need for an extra devices that undoes RIAA equalisation.
If that fails, then you need something like the [Wayback/Archive.is] Line level to phono input converter diagram:
Or get you a [Wayback/Archive.is] iRIAA2 – Inverse RIAA Filter – Hagerman Audio Labs
Read the rest of this entry »
Posted in Development, Hardware, Hardware Development, Power User | Leave a Comment »
Posted by jpluimers on 2024/12/31
A small introduction is the Pentium FDIV bug – Wikipedia article which already has some of the highlights..
Ken Shirriff however went all the way in, and used a microscope to focus in on to the actual cause.
He wrote two Mastodon threads on it watching (most recent first, with a link to his blog post) making a good year’s end read:
And there is of course this, that predated his microscope work [Wayback/Archive] Ken Shirriff: “I recently saw an amazing Navajo rug…” – OldBytes Space – Mastodon Read the rest of this entry »
Posted in 8086, Development, Hardware Development, History | Leave a Comment »
Posted by jpluimers on 2024/11/28
Ordered because all of a sudden, my scanner would only charge over USB, but not connect to any computer any more over USB (likekly because the Micro-USB connector on the mainboard was broken which is odd after just a few 100 inserts which is odd as it should last 10k+ cycles according to USB hardware – Wikipedia) [WaybackSave/Archive] SCANSNAP iX100 SCANNER REPAIR MANUAL – PFU Ricoh Store.
It costs only USB 0.00, so I hope they will send it outside of the USA.
When ordering, you have to agree with these:
When I don’t receive the manual, hopefully the translated version of this video will be of help: [WaybackSave/Archive] Reparación Scanner Fujitsu ScanSnap – Puerto De Carga Micro USB – YouTube -> Fujitsu ScanSnap Scanner Repair – Micro USB Charging Port – YouTube.
Como me pasa muchas veces esto grabe este video. Me piden que repare algo que ya intentaron reparar de la manera incorrecta.
->
As this happens to me many times, I recorded this video. I am asked to repair something that they already tried to repair incorrectly.
Queries:
--jeroen
Posted in Development, Power User, Hardware, Hardware Development, Scanners, Fujitsu ScanSnap, ix100 | Leave a Comment »
Posted by jpluimers on 2024/11/27
The cells for the APC RBC7 and RBC55 UPS battery packs are all the same: 12V varying from 17Ah to 22Ah, has M5 leads for mounting the cables, and dimensions of ~76.5 * 181.5 * 167.5 mm
These cells are collectively named UB12180 but searching that term will get you prices that are not far from the APC ones, and APC wants to charge you an arm and a leg for them (around EUR 75 per cell).
Searching for the individual cell capacity will get you better offers.
Related blog posts:
Some links for finding them; maybe around Black Friday (it’s in a few days: 2024-11-29) I can really good deals:
Read the rest of this entry »
Posted in APC Smart-UPS, Development, Hardware Development, UPS | Tagged: 55 | Leave a Comment »
The Wiert Corner - irregular stream of stuff 