(Topic ID: 254679)

Williams System 7 MPU - value?

By PinJim

3 months ago

Topic Stats

  • 4 posts
  • 4 Pinsiders participating
  • Latest reply 3 months ago by fattdirk
  • Topic is favorited by 1 Pinsider


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    #1 3 months ago

    I was digging through my stash of parts today and found an old Williams System 7 MPU. What’s a bit unique about it is that it’s very original. As best I can tell, it’s never seen a soldering iron. And there’s zero battery damage. I can’t confirm if it works as I don’t have any System 7 machines. Sold my Black Knight years ago...

    I guess I’m wondering on the value, and if anyone wants it. Before I get flamed, I’m well aware that the board would need some work to make it perfect. Specifically, if I were going to use it, I’d replace all of the headers, sockets and would install nvram.

    Maybe I’m a purist at heart. I love getting old boards in good shape, reworking them and knowing they’ll last another 20 years.

    Wish I had a way to test it....

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    #2 3 months ago

    I need one for my Pharaoh...shoot me a PM if you want to sell. Not sure of value since its untested.

    #3 3 months ago

    System 7 MPUs are tough to find and don't surface too often. I think I've only had two pass through my hands in the past 5 years. The last one I saw on ebay about a year ago had a bidding war up to about $150, if I remember right. It was untested and probably not working. I don't think it was nearly as clean as this one.

    #4 3 months ago

    I'd say at least $200 - there isn't a replacement MPU that consistently works available and this one is super clean.

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