User avatar
m0c
Utrecht, Netherlands

Posted Fri Nov 03, 2023 5:02 pm

As some of you might know, I'm a big fan of the GBA1000 project; a drop-in replacement for the A1000 mainboard. Here are some photos of a build that I finished recently and that I'm particularly fond of. My apologies for the size.
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Mainboard nearing completion, 68030 installed for testing purposes, no fastram just yet

pro-sllILuHt.jpeg
Finished, testing phase

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Turbo card, 68060 Rev.6 @100MHz, 128MB fastram, custom floppy cable

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Turbo card detail

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Turbo card detail

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ECS chipset, 2MB chipmem, flicker fixer

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PicassoII GPU

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Flash bootrom

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Analog audio stage, switchable low pass filter

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Picasso II gfx card detail, angled edge connector

sysinfo.jpg
Obligatory sysinfo

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Workbench (RTG mode)


User avatar
intric8
Seattle, WA, USA
YouTube

Posted Fri Nov 03, 2023 5:40 pm

OMG that is GORGEOUS!!! Tremendous work. Thank you so much for posting the photos, too. :boing: <3

User avatar
fastrobplus

Posted Sat Nov 04, 2023 2:44 pm

Thanks for showing this off! I have a vague question you might know something about. Over on A1K when they were developing the GBAPII++ for the GBA1000, GB and others allude to a version of the board that is "Local Bus" implying that it sits in the ZII slot but is somehow faster than the ZII's normal speed. Have you heard of this?

PS: I like the clean look of the CF drive and the floppy cable. Much better than my design.

User avatar
Seb132
Gold Coast, Australia

Posted Sat Nov 04, 2023 8:01 pm

Great machine, and fantastic pictures of an amazing build. Soldering quality is above C='s standards!! <3 :boing:

User avatar
obitus1990
USA

Posted Fri Nov 10, 2023 7:29 am

Beautiful! Where can boards for this build be purchased? A1K.org? Might be time for me to get back into building Amiga hardware :)

User avatar
m0c
Utrecht, Netherlands

Posted Sat Nov 11, 2023 5:53 pm

fastrobplus wrote:
Sat Nov 04, 2023 2:44 pm
Over on A1K when they were developing the GBAPII++ for the GBA1000, GB and others allude to a version of the board that is "Local Bus" implying that it sits in the ZII slot but is somehow faster than the ZII's normal speed. Have you heard of this?
All I know is a reply by Matze to my question on a1k regarding this matter.
https://www.a1k.org/forum/index.php?thr ... st-1523710

User avatar
m0c
Utrecht, Netherlands

Posted Sat Nov 11, 2023 6:12 pm

obitus1990 wrote:
Fri Nov 10, 2023 7:29 am
Where can boards for this build be purchased?
The GBA1000 project is open source (sort of) and the gerbers are wandering around on the net, so you can have your boards made yourself by any familiar PCB manufacturer. I once purchased 3 boards in Poland from Archi-tech, but their webstore currently appears to be down.

EDIT: They are back online for now.

User avatar
m0c
Utrecht, Netherlands

Posted Thu Dec 28, 2023 5:06 pm

Just a few new old photos to stir up this thread a little. I once was amazed to find out that the GBA1000 is actually compatible with my A1060 Sidecar.
Sidecar.jpg
Sidecar connected to GBA1000

Whichamiga.jpg
WhichAmiga detects the Sidecar as an A2088 bridgeboard and the whole setup is identified as an "expanded Amiga 2000+"

dos.jpg
DOS window


User avatar
m0c
Utrecht, Netherlands

Posted Sat Jan 20, 2024 5:52 am

The GBA1000 from my initial posting has recently found herself a new owner in my friend Jiri from the Czech Republic, who has promised me to take good care of her. Jiri has been one of her so many secret admirers for years :)

He took a few more stylish pictures of her being partly undressed for us to enjoy. His Workbench setup is still a work in progress, but it is looking good already!
GBA1.jpg
GBA2.jpg
GBA3.jpg

User avatar
Warty

Posted Sat Jan 20, 2024 6:51 am

amazing and beautiful.

Anyone ever hear of like freelancer solders? I imagine it's probably possible to get the boards and many of the components assembled by a company in china, but presumably there are still quite a few Amiga chips you need to source from your old computer and then solder on?

well, it doesn't matter. I just have the one A1000, and it works great, so I don't want to sacrifice it for this incredibly sexy thing anyway. (if I say that like 10 times it will become true).





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