Ordering the Alpha board
- Icky
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Re: Ordering the Alpha board
Wow Exxos that is quite a feat of engineering. I just compared your new board to my 520 STM board.
- exxos
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Re: Ordering the Alpha board
Cool! well actually base form as STF of course


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- rubber_jonnie
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Re: Ordering the Alpha board
Cool, sockets it is thenexxos wrote: ↑Tue Aug 28, 2018 4:17 pmWell I am shipping sockets for them all anyway. Problem is, if a chip gets red hot , then unsoldering it will be a pain.. also if something is wrong somewhere, might need leg bending, track cutting etc...
Soldering direct is best for sure, but not a good idea on a test board..

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800XL + Ultimate 1MB, 2x 1010 cassette, 1050 + Happy mod, 65XE (128k +APE Warp) & XC12, SIO2SD, 2600jr, 7800 and Lynx II
Atari 520ST (1Meg), 1040STF long button floppy, 2x 1040 STFMs + Gotek, 2x 4160STE with 32Mhz booster, ROM switcher, Mega ST1, Mega ST4, not to mention various bare ST boards for testing including a PAK 68/2

Plus the rest..
Amiga stuff, Mac stuff, Sinclair stuff etc...
www.electronicnothingness.co.uk
- alienkidmj12
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Re: Ordering the Alpha board
Picked mine up this morning 
Superb.

Superb.
Re: Ordering the Alpha board
"Probably won't work edition" has landed in Ohio. =D
Re: Ordering the Alpha board
congrats Exxos, a new motherboard looks so cool
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SDrive / PAK68/3 / Lynx Multi Card / LDW Super 2000 / XCA12 / SkunkBoard / CosmosEx / SatanDisk / UltraSatan / USB Floppy Drive Emulator / Eiffel / SIO2PC / Crazy Dots / PAM Net
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- exxos
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Re: Ordering the Alpha board
Glad you are all getting them pretty quick! Thanks for everyone's support!
I will be listing 4 more boards in my store shortly... those are the last ones... I'm not producing anymore of these boards as of course it is un-tested.
See the roadmap for clues on whats to happen over the next year... viewtopic.php?f=19&t=1028

I will be listing 4 more boards in my store shortly... those are the last ones... I'm not producing anymore of these boards as of course it is un-tested.
See the roadmap for clues on whats to happen over the next year... viewtopic.php?f=19&t=1028
https://www.exxoshost.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxoshost.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
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- exxos
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Re: Ordering the Alpha board
I will list the last 3 boards in my store later today.. but please don't order any other parts as I can only send the board in a jiffy bag and can't pack other items in there as well (not without being crushed)..
https://www.exxoshost.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxoshost.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
https://www.exxoshost.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
Re: Ordering the Alpha board
Chris I've been looking for the schematics for the board, I have enough parts to start building. I want to check the resistance on the pullups prior to starting full build up. Also is the DiagROM image up some where? Maybe we could have a thread for debug tools. Hope to have power on by next week end. The memory board and processor I just ordered from your store is going to be my long pole.
Thx
Thx
- Icky
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Re: Ordering the Alpha board
Hi PaulJPaulJ wrote: ↑Sun Sep 23, 2018 3:36 pmChris I've been looking for the schematics for the board, I have enough parts to start building. I want to check the resistance on the pullups prior to starting full build up. Also is the DiagROM image up some where? Maybe we could have a thread for debug tools. Hope to have power on by next week end. The memory board and processor I just ordered from your store is going to be my long pole.
Thx
When building the board I used a combination of the following to help:
- Schematics diagram is here - viewtopic.php?f=19&t=199
- Parts List is here - viewtopic.php?f=19&t=1040#p7982
- Silk screen layer image to help with placement (in parts list area) - viewtopic.php?f=19&t=1040#p7984
Icky