BA11-D PDP-11/35 Basic Box Power Supply and Slides

This document is an Engineering Change Order Log detailing various problems and corrections for the BA11-D PDP-11/35 Basic Box, Power Supply, and Slides, primarily spanning May to November 1973. Key updates include: correcting Parts List errors and slide pivot orientation; resizing +5V and Ground wires in the power harness to improve current capacity and reduce IR drop, alongside correcting signal naming and harness titles; addressing inadequate air flow in the chassis by mandating new fan housing installations; clarifying AC power cord and I/O cable strain relief placements and correcting inverted power control drawings; and rectifying underspecified chassis screw lengths. Further changes involve removing redundant ground wires in MATE-N-LOCK connectors, replacing fan wiring with shielded cables to prevent AC line noise, and making specific wire table corrections. Many of these changes require in-plant retrofits, documentation updates, field kit installations, and are often interdependent, referencing specific Field Change Orders (FCOs).