Can anyone ID these parts please? Atari,Midway,Stern?

sohchx

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Can anyone ID these parts please? Atari,Midway,Stern?

I'm not sure if I should hold onto this stuff or not as it is no use to me for now. I know one is a williams power board and I'm guessing the two large ones atari? I have some of these in a few of my games I'm sure but don't feel like pulling them from the wall to check. lolazy
 

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Top two right are Atari. big Bottom one looks like Bally/Midway. Little brown one in the middle is a Nintendo Sanyo Audio board. Others will chime in for the rest.
 
Looks like 2 Stern supplies (smaller one I think is berzerk), 2 atari ar somethings, Midway medium PS (from Gorf or Super pac maybe) , some kind of monitor interface, a williams I/O board, not sure about the rest.
 
Alright, top two left are Stern. Top two right are Atari. Midway at bottom right; Two long boards on left at bottom are K7000 19" adjustment boards, Above that appears to be a Williams Widget i/o board with no ribbon cable, Above that on left is Williams power supply, to the right of that is some sort of filter board, above that is a Sanyo/Nintendo audio amp.
 
The some sort of filter board is a Williams power supply "crowbar" circuit. Basically, it plugs into the output side of a Williams power supply...then the harness plugs into it. A Williams power supply can fail in a certain way that actually INCREASES the 5VDC line. This interface board prevents that from happening.

Edward
 
The "filter board" (just to the right of the Williams Joust style PS board) is the overvoltage circuit board used to prevent the +5V or +12V from going too high on a Defender style power supply. This circuit was added to the Joust style PS boards.

The little board below the Williams PS board is an I/O card minus the ribbon cable. It looks like a Defender I/O card.

ken
 
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