PC01 Engineering Drawings RevM May1974

This multi-page technical document is a comprehensive manual for the Digital Equipment Corporation (DEC) PC01 Paper Tape Reader & Punch. It serves as a master drawing list, a detailed assembly guide, and a technical specification for the device.

Key aspects covered include:

• Product Identification: The document explicitly details the PC01 Reader & Punch, available in both 60 Hz and 50 Hz configurations, with some parts lists differentiating by unit serial numbers (e.g., "#PCC4-1 and higher").
• Documentation Overview: A "Master Drawing List" and "Drawing Index List" provide a central directory for all mechanical and electrical drawings related to the PC01.
• Detailed Parts Lists: Extensive lists specify every component required for the overall assembly and major sub-assemblies such as the Chassis, Reader, and Punch.
• Assembly Instructions: Step-by-step guides with exploded views illustrate the construction of the main unit and its sub-assemblies, including the Reader Assembly, Tape Control & Punch Assembly, Handle Assembly, Cover Assembly, and Chassis Assembly.
• Electrical Schematics: Comprehensive circuit diagrams are provided for the entire PC01 unit, specific component plates, and individual sub-assemblies (Reader and Punch). These schematics detail power distribution, motor control (including a Slo-Syn stepping motor for the reader and a GE motor for the punch), photo-head sensing, lamp circuits, switches, transistors (e.g., 2N1146A), and various connectors and wiring.
• Physical Layout & Dimensions: Outline drawings provide crucial physical dimensions, mounting instructions, and details on panel variations (e.g., 19" or 19.5" front panels, optional chassis slides).
• Accessories: A dedicated list enumerates supplementary items like manuals, prints, mounting hardware, and fanfold tape.
• System Context: A handwritten note indicates the PC01's integration with a "POP-8 I PR/PP8I" system, listing specific module references (M7450, M715, M714, M44P's) and cable connections, suggesting its role as a peripheral in a larger computing environment.