H720 Power Supply and Mounting Box Manual

This manual provides comprehensive technical information for the PDP-11 H720 Power Supply and its associated mounting boxes. It includes theory of operation for the regulated switching mode power supply (covering $+5V$ and $-15V$ regulators, overvoltage/overcurrent protection, and AC/DC sensing circuits), as well as details on various system configurations, installation procedures, and specifications for rack-mountable, table-top, and cabinet-mounted systems. The document also includes specific data sheets for system components such as the mounting boxes (BA11-CS, BA11-CC, BA11-ES, BA11-EC), H720 power supply models, Teletype units (LT33, LT35), and associated cabinets and programmer tables.