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3B Harris CS80C286-16
3E Delay DDU66F-16
9B,D SDT 7174 S45P
P2 70-position edgecard
This looks similar to the Xtend Rennaisance accelerator, in that there is
provision for a cable and PLCC plug to be attached to the card. The card is
chock full 'o PALs and logic chips.
Most likely for the 8550.