Image: S111FlipChipBack
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Description: S111 Flip Chip (trademark) module from a PDP-8 computer, solder side. This module is a triple 2-input nand gate made with discrete component diode-transistor logic (there is one hybrid integrated circuit on the board, but the board is etched and drilled for the 5 discrete components that could replace that module.) The text etched on the board says "DIODE GATE R111 / 6 67" (implying a board design from 1967).
Title: S111FlipChipBack
Credit: Own work
Author: Douglas W. Jones
Usage Terms: Creative Commons Zero, Public Domain Dedication
License: CC0
License Link: http://creativecommons.org/publicdomain/zero/1.0/deed.en
Attribution Required?: No
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