File:S111FlipChipBack.jpg
Summary
S111 <a href="https://en.wikipedia.org/wiki/Flip_Chip_(trademark)" class="extiw" title="w:Flip Chip (trademark)">Flip Chip (trademark)</a> module from a <a href="https://en.wikipedia.org/wiki/PDP-8" class="extiw" title="w:PDP-8">PDP-8</a> computer, solder side. This module is a triple 2-input <a href="https://en.wikipedia.org/wiki/nand_gate" class="extiw" title="w:nand gate">nand gate</a> made with discrete component diode-transistor logic (there is one <a href="https://en.wikipedia.org/wiki/hybrid_integrated_circuit" class="extiw" title="w:hybrid integrated circuit">hybrid integrated circuit</a> 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).
Licensing
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 02:34, 7 January 2017 | | 1,573 × 1,181 (480 KB) | 127.0.0.1 (talk) | S111 <a href="https://en.wikipedia.org/wiki/Flip_Chip_(trademark)" class="extiw" title="w:Flip Chip (trademark)">Flip Chip (trademark)</a> module from a <a href="https://en.wikipedia.org/wiki/PDP-8" class="extiw" title="w:PDP-8">PDP-8</a> computer, solder side. This module is a triple 2-input <a href="https://en.wikipedia.org/wiki/nand_gate" class="extiw" title="w:nand gate">nand gate</a> made with discrete component diode-transistor logic (there is one <a href="https://en.wikipedia.org/wiki/hybrid_integrated_circuit" class="extiw" title="w:hybrid integrated circuit">hybrid integrated circuit</a> 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). |
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