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Old 21 April 2011, 11:30   #1
Kai
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PAK68 Accelerator Schematics for all! :)

Hey everyone - i thought as a first post - what better way to introduce myself, than to post up the full article on the original PAK-68 accelerator from C't Magazine (August 1987). I managed to contact the editor of Heise Online, and he mailed me out a mint condition back copy for free!

So, i scanned it in as hi-res, and voila - here you are!

There are no GAL/PAL's involved, just 74LS Glue Logic, and discrete components. This would also work with an SMT 68EC020 as well, i reckon.









Yes, it's in german - but all we need, are the schematics
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Old 21 April 2011, 14:17   #2
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Good job, thankyou very much.

A moderator will welcome you to EAB, they will be along shortly
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Old 21 April 2011, 14:23   #3
TCD
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Hmm? Oh...

Hi Kai and welcome to EAB!
Great first post and enjoy your stay
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Old 21 April 2011, 14:43   #4
Kai
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Thanks people

I have the articles for the PAK68/2 and the PAK68/3 as well, with the schematics and PAL/GAL equations too, if you want me to put those up later?
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Old 21 April 2011, 15:11   #5
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Sure thing
I've made a PDF of the article and uploaded it to the EAB file server in the folder 'Doc/App_Hardware'. Hope that's okay for you?
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Old 21 April 2011, 17:08   #6
ceedy
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Nice info & welcome to the board!!

Ich wünsche, habe ich es verstanden.

Last edited by ceedy; 21 April 2011 at 17:37. Reason: being polite!!..ithis better LOL
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Old 21 April 2011, 17:22   #7
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Nice schematics Kai and welcome to EAB!

Quote:
Originally Posted by ceedy View Post
Ich wünschte, ich verstand das.
And remember German people that can gather around here: this is English Amiga Board, please be gentle with us poor iliterates.
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Old 21 April 2011, 17:41   #8
cosmicfrog
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Send a message via MSN to cosmicfrog
and froggies that cant spell proper too
apart from that
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Old 21 April 2011, 18:09   #9
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I have one of these sat in front of me on my desk at work. It doesn't work, maybe these will help
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Old 21 April 2011, 18:17   #10
Kai
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Here you go chaps - feast your eyes on this

Articles
Pak68/2, Part 1: http://kai.robinson.free.fr/dropbox/.../Part1/art.htm

Pak68/2, Part 2: http://kai.robinson.free.fr/dropbox/.../Part2/art.htm

Pak68/3: http://kai.robinson.free.fr/dropbox/...AK68-3/art.htm

Zipped Articles

Pak68/2, Part 1: http://kai.robinson.free.fr/dropbox/...10.178-185.zip

Pak68/2, Part 2: http://kai.robinson.free.fr/dropbox/...11.314-326.zip

Pak68/3: http://kai.robinson.free.fr/dropbox/...11.222-231.zip

The schematics in that Pak68/3 are awful, unfortunately, if anyone has any better quality ones, they would be appreciated.

C't still sell the back issues - although i got the August '87 copy free of charge - literally, i asked if they had one, and two days later, a very efficient german man had sent me a mint condition copy!

Dates for the publishing of all the known PAK68 articles are:

Pak68 (original): August 1987
Pak68 (FastPAK): January 1990
Pak68 Kickstart Patch: April 1990
Pak68 Amiga @ 14Mhz: September 1990

Pak68/2 Part 1: October 1991
Pak68/2 Part 2: November 1991

Pak68/3: November 1993
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Old 23 April 2011, 14:43   #11
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Hmm...tried to look in 'The Zone!' and turns out i don't have access...are there minimum requirements, or does my account need to be poked at by an admin?
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Old 23 April 2011, 14:49   #12
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1.) Click on 'Rules & Help' at the top of this page.
2.) Read the board rules carefuly.
3.) Click on that funny red link right below 'vBulletin FAQ'
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Old 27 April 2011, 15:40   #13
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Just got an email from Thomas Hoffmann @ Heise Publishing, regardling all the PAK related articles. I gave him the dates for the articles, and he's going to scan and PDF them in personally - so we may end up with better schematics after all!
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Old 27 April 2011, 16:57   #14
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@Kai

Thats fantastic news to read indeed!
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Old 27 April 2011, 20:35   #15
Kai
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Did the stuff i uploaded the other day help yours get finished?
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Old 28 April 2011, 02:49   #16
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@Kai

alas I have not had the time, with bout a billion project blasting off the walls alas I had to let the PAK68/3 go to a friend whom could best use it in their Atari ST....

However, the sources are a great read and will provide a great basis to build a similar adapter for an A500/CDTV in the future.

I cannot thank you enough for sharing them



now.... have you told TCD the best bit yet?..... y'know... the fact he has to translate all the PDF's to English =D
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Old 28 April 2011, 09:30   #17
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Quote:
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now.... have you told TCD the best bit yet?..... y'know... the fact he has to translate all the PDF's to English =D
Tell you what Zetty : Once I play the first demo of that Captive remake, I'll start translating =D
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Old 28 April 2011, 17:32   #18
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Tell you what Zetty : Once I play the first demo of that Captive remake, I'll start translating =D


you do know.... now that you have said that.... I will hold you to it
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Old 28 April 2011, 21:22   #19
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Bring it
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Old 29 April 2011, 04:01   #20
Kai
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Might be easier to build the LUCAS to start with instead of a PAK/3 - fewer PAL/GAL's and the PCB masks are already in the PDF file i uploaded

Would be nice to have that converted into a gerber file, too!

Now all i need, is an A500+ so i can have a go at making it myself
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