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How to build a multi jamma?
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jimkirk:

--- Quote from: CheffoJeffo on January 24, 2009, 11:57:22 am ---

 *I* buy my JAMMA switches because it isn't worth the time to make them for *myself*, let alone design them for someone else.

--- End quote ---

I agree,by the time you buy materials and spend hours designing and building the switcher,it would be cheaper and way easier to just buy the damn thing and go on to other projects.
I would just buy the 6 in 1 so you have the option to put other boards in later if you want.
I have 6 boards in my cab.

Edit: I found this on ebay,pretty good deal.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=310118028006&category=13718&_trksid=p3907.m263&_trkparms=algo%3DSI%26its%3DI%26itu%3DUCI%26otn%3D15%26po%3DLVI%26ps%3D54
littlecharlie:
It's not only a matter of money (even if the shipping costs to Spain make the item less interesting), it's a hobby.
I'd like to spend some of my free time making this multiple jamma by my own.
I've made an arcade control, a supergun, and my next target is a double jamma.
All I'm asking here is if someone can help me out ...
Any schemes? any advise? the theory of what should I do?

pd: it's not always easy to understand what you mean for a non enslish-speaking person
polaris:

--- Quote from: littlecharlie on January 24, 2009, 08:12:41 pm ---It's not only a matter of money (even if the shipping costs to Spain make the item less interesting), it's a hobby.
I'd like to spend some of my free time making this multiple jamma by my own.
I've made an arcade control, a supergun, and my next target is a double jamma.
All I'm asking here is if someone can help me out ...
Any schemes? any advise? the theory of what should I do?

pd: it's not always easy to understand what you mean for a non enslish-speaking person

--- End quote ---

if making a jamma switch proves to be difficult, maybe Grantspain who posts here could help you find a supplier in europe.
littlecharlie:
Ok, but my priority is to try to build one.

I will appreciate any help on how to do it.
venkman:
i have a machine that has two games.

it has one pcb that seems to simply route the signal from the other two. both stay powered all the time - so when i press the button on the front it just switches the signal from one to the other.

here's a picture:




i didn't build it tho' ..  i bought it like that.
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