TU56 DECtape Illustrated Parts Breakdown

The TU56 DECtape Illustrated Parts Breakdown (IPB) is a technical manual compiled by Digital Equipment Corporation (DEC) in 1973. It serves as a comprehensive reference for identifying components within the TU56 DECtape system.

Key sections include:

• Major Assembly Locator: Provides an index and figure references for the system's primary assemblies.
• Indented Parts List: Details the assembly hierarchy, part names, specifications, and DEC part numbers.
• System Information: Includes tables for ECO (Engineering Change Order) levels, vendor codes, 'used on' variations, and reference figure numbers to assist with maintenance and repair.
• Assembly Diagrams: Features exploded view diagrams for the Front Panel, Front Panel Switch, and H725 Power Supply assemblies.
• Revision History: Documents the evolution of the manual from its first printing to the second, which superseded the original version.