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IBM 3174 Schematics

This is a work in progress

| Part | Description | Status | | -------- | -------------------------- ------- | ------------------------------------------ | | 66X2491 | Floor model backplane (1R) | MMIO, PIO, File, FRU, Memory buses traced | | 6423182 | 1x Floppy flat-flex cable (1.2 MB) | Fully traced | | 25F8377 | 1x Floppy flat-flex cable (2.4 MB) | Fully traced | | 39F8497B | 9501 Processor Card | Tracing has started | | 66X2555 | 1x Front Panel Adapter | Fully traced | | 4804680 | 1x Front Panel | Fully Traced | | 66X2450 | 1MB Memory Module | Fully Traced | | 8575400 | 1x Hard Drive flat-flex cable | Fully Traced |

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KiCad Schematics for parts of the IBM 3174

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