10 Bit A/D Converter

This document is the Engineering Change Order (ECO) log for the AD01-D 10-bit A/D converter, designed for the PDP-11 processor family. It lists various ECOs and Field Change Orders (FCOs) implemented between 1970 and 1974. The log details specific engineering problems, the corresponding corrective actions, and notes on how each ECO affects the Master Drawing List revisions. The document provides crucial maintenance information, including installation times, field retrofit requirements, and part updates for service technicians.