Luckily enough my old PC would fit the bill perfectly, I installed Lubuntu; a light weight operating system that would run mame and provide USB support.
This was fairly easy to do, but when it came to dropping the tower into the cabinet it would not go! so a stripdown was required.
The controls were mapped to a great little usb interface that I picked up on ebay for £6, I gave the unit and legs a respray and touched out big blemishes in the wood work.
Other modifications were needed, the power switch and the status LEDs were broken out to the old site of the slow blow fuse, and the speaker is now powered by a stripped down PC speaker amp.
That Tube you see is a tumble drier exhaust to get the heat of the PCB straight out of the cabinet via the vacant speaker grille. The credit button is a push to make switch glued to the coin reject mechanism so when you push the button the innards close the switch, this avoids making holes in the original cabinet.
Another pc fan was added in the site of the older air intake fan from the 1979 build to keep the temperature down in there, and I have a few games installed that only use the left/Right controller and one fire button.
I can manage the files from any other computer as I installed a SSH client to it, so remote maintenance can be preformed easily.
|Lots of space invader games & Lunar rescue added|
|Two way games added, Mappy|
|Final Build with monitor in situ|
|Push to make switch adds credits when cion reject is pushed|
|Final install, with monitor removed|
|USB joystick interface|
|the PC PCB removed, PSU and HD|