schlumberger

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  1. champagneandchips

    Unknown "Schlumberger" expansion card - any ideas what it is?

    I've got this expansion card with a brand of "Schlumberger" and an identifier of 100103-B, 100104-REV that I am unsure of what it is (see details in the pictures below). It came in an IBM 5170 I'm restoring right now, and had long ribbon cables with a to me unknown connector type hanging out of...
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