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Atari 8-Player Multijoy Adaptor - new full color assembly instructions


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#1 8Bitjunkie OFFLINE  

8Bitjunkie

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Posted Wed Apr 2, 2014 4:44 PM

Hello Atarians,

Maybe you already know the Atari 8-Player Multijoy Adaptor to play with eight joysticks on one Atari XL/XE Computer.

The plans were quite old, but the german magazine "RETURN" brought a new full color picture assembly instruction in issue #16 - complete with part list, diagrams and photos.

If you ever wanted to build your own Multijoy, this may be of interest:

https://www.return-m...urn-ausgabe-16/

https://www.facebook.../RETURN.Magazin

Greetings
Thomas

multijoy.jpg

P.S: Building this for your own is legal - even in Europe ;-)
 



#2 pps OFFLINE  

pps

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Posted Thu Apr 3, 2014 1:23 AM

That looks awesome :)

 

I assume you had a lot of fun building and then testing if everything works well.



#3 8Bitjunkie OFFLINE  

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Posted Thu Apr 3, 2014 1:39 PM

Oh yes! We had a lot of fun! :-D  :-D Wanna join us next time?



#4 powersoft OFFLINE  

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Posted Thu Apr 3, 2014 2:50 PM

Sadly some sentences must be posted as there are some freaks around want to destroy the scene...

 

This looks like mega fun! Even there are a lot games (in my oppinion) available up to 8 players... Just to find eight in total may in an area like mine really hard :-)

 

Cheers



#5 8Bitjunkie OFFLINE  

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Posted Thu Apr 3, 2014 4:54 PM

We met with 4 people in the town called "Essen" and handcrafted the four multijoys pictured above...
 

36.gif

You may find some pictures of building the red one here:

http://www.abbuc.de/...t=7873&start=40

 

 

@powersoft: Go to the street, collect 7 people and start playing :-)

There should be no problem on events like NOMAM, Fujiama, DoReCo, [Connected], and so on :-)

 

 



#6 kenjennings OFFLINE  

kenjennings

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Posted Thu Apr 3, 2014 5:32 PM

Are there plans for MultiJoy in English somewhere?



#7 powersoft OFFLINE  

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Posted Fri Apr 4, 2014 4:03 AM

@8bitjunkie: Where I live are no seven people on the street, haha :-)

 

@kenjennings: I got an idea - but need to check it with two people to make this available...



#8 8Bitjunkie OFFLINE  

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Posted Sat Apr 5, 2014 3:54 AM

...Btw: there are pretty cool games available für the Atari MultiJoy:

(Gamma) Hockey - 4 Player
(Gamma) Soccer - 4 Player
(Thorn EMI) Hockey - 4 Player
(Thorn EMI) Soccer - 4 Player
Asteroids - 4 Player
Astro4Road - 4 Player
Astrowarriors M4 - 4 Player
Basketball - 4 Player
Battle Room - 4 Player
Bremspunkt - 4 Player
Card Grabber - 8 Player
Cervi - 8 Player
Cervi2 - 16 Player
Dandy Dungeon - 4 Player
Dynakillers Unchained - 4 Player
Floyd of the Jungle - 4 Player
Fujiama Run - 7 Player
Gem M4 - 4 Player
HeliCops - 5 Player
Ice-Hockey - 4 Player
Impact M4 - 4 Player
Killa Cycle M4 - 4 Player
Killer 'Thello M4 - 4 Player
M.U.L.E. - 4 Player
Major League Hockey M4 - 4 Player
Mashed Turtles - 8 Player
Mazewar - 4 Player
Mouse Party M4 - 4 Player
Multris - 4 Player
Proto Basketball M4+ - 4 Player
Quadrotron M4 - 4 Player
Sheep Race - 8 Player
Shot 'em all - 16 Player
Silicon Warrior by Epyx - 4 Player
Survivor - 4 Player
Table Football M4+ - 4 Player
Tennis - 4 Player
Wingman - 4 Player

And that were not all games available for the Multijoy!


But the best is:

The parts for the logic cost only 1 Euro and 15 cent! (1.57 Dollar / 0.95 Pound)

Part: Qty Price Sum
SCHOTTKY-TTL 1 0,290 € 0,29 €
Elko, axial, 330µF/16Volt 1 0,180 € 0,18 €
Planar Epitaxial Schaltdiode, 40 0,017 € 0,68 €

Add a few bucks für the joystick sockets and a housing and you are done :-)
 



#9 pps OFFLINE  

pps

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Posted Sat Apr 5, 2014 4:09 AM

...
M.U.L.E. - 4 Player
...

Oh, missed this one - where to get the patched version?



#10 8Bitjunkie OFFLINE  

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Posted Sat Apr 5, 2014 4:18 AM

You have an PN :-)

 

just search for

    atari <gamename> M4 fandal



#11 pps OFFLINE  

pps

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Posted Sat Apr 5, 2014 4:28 AM

:) thanks



#12 8Bitjunkie OFFLINE  

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Posted Sat Apr 5, 2014 10:48 AM

Here are two pictures of my multijoy...

 

multijoy_housing.JPG

 

It's no rocket science, you can build one on a rainy afternoon :-)

 

multijoy-inside.JPG


Edited by 8Bitjunkie, Sat Apr 5, 2014 10:49 AM.


#13 Lynxpro OFFLINE  

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Posted Wed Nov 25, 2015 10:06 AM

That is some serious sorcery.  How does it grant the ability to support 8 players?  I mean, getting a non 400/800 to support 4-players is impressive enough.

 

I'm assuming it's all due to the POKEY and thus this couldn't be replicated on a 7800.



#14 Mathy ONLINE  

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Posted Wed Nov 25, 2015 6:03 PM

Hello Lynxpro

 

The Atari can handle 16 players using 16 joysticks via a Multijoy Interface.  PIA pins can be switched to output.  When using a multijoy interface, one joystick port is switched to output, the other to input.  "Input" reads the joystick, "output" selects which joystick is read.

 

Sincerely

 

Mathy



#15 mykgerard OFFLINE  

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Posted Wed Sep 13, 2017 12:54 AM

This Multijoy sounds awesome.  I'm bummed because my understanding is that nearly all of this stuff is PAL  :(






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