Mac 128k

Archive No. 296

Mac 128k

FatMac upgrade

VERY_GOODCirca 1984RareFully Operational

The Story

Mac 128k FatMac upgrade

Purchase from guy in Elizabeth neighborhood in Charlotte. Wasn't sure if it was a 512k upgrade or 128, but the Serial Number showed it as a 128k, so I was hoping it was. The logic board is indeed a 128k, but it has some mods done (all memory chips have

been socketed and a new socket and chip was piggybacked onto another with some resistors. Basically making it a 128k with 512k memory (aka FatMac). Analog board was having issues, so I took it from my Mac Plus that was an upgraded 512k. Floppy drive works.

Archival Status: Fully Operational.

Specifications

Technical Blueprint

Ref: M0001

Processor

Motorola 68000 8MHz

Memory

512k

Storage

400k floppy drive

Condition

VERY_GOOD

Hardware Notes

PRAM battery removed

Gallery

Detailed Observations

Mac 128k
Mac 128k
Mac 128k
Mac 128k
Mac 128k
Mac 128k
Mac 128k
AI-generated product image

AI-generated product image

Restoration Log

Work Done

Every repair, recap, and restoration performed on this machine — documented as the work was completed.

2025

Floppy Drive Recondition

2025

Logic Board Recap

2022

Analog Board Recap

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