ON THREE 512K Memory Board User’s Guide

This is the installation and user’s guide for ON THREE’s 512K Memory Board for the Apple ///.  There were several board revisions released over the years, and the manual was updated accordingly.

Thanks to Bill Degnan for providing the alternate version.

ON THREE 512K Memory Board User's Guide (PDF | 26.3 MB)

User's Guide

On Three 512K User's Guide (alt. version) (PDF | 12.6 MB)

User's Guide (alt. version)