Editing PDP-11/20 Documentation (section)

== H720 Power Supply and Mounting Box Manual (DEC-11-HR5B-D) ==
DEC's manual for the H720 supply and the BA11 boxes, fifth printing November 1972 (first printing August 1970), 26 pages scanned.<ref name="h720" />

Contents: 1 introduction; 2 power supply: models (Table 2-1), AC power distribution and the unregulated supplies, block diagram description of the switching regulators, overcurrent and crowbar protection, AC LO and DC LO, and a detailed circuit description with the driver, differential amplifier, crowbar, AC LO and DC LO schematics (pp. 2-1 to 2-8); 3 mounting box and its models (Table 3-1); 4 installation: configurations (Table 4-1), space, environment, power and cable requirements, installation steps, and data sheets for the PDP-11/20 models, LT33 and LT35 Teletypes, the H720 (p. 4-9), the H960-CA cabinet, the H952-HA table and the extension boxes.<ref name="h720" />

It gives no parts list or component values; for those use the drawings below.

<pdf width="800" height="500">File:H720 Power Supply and Mounting Box Manual (DEC-11-HR5B-D).pdf</pdf>

Download: [[:File:H720 Power Supply and Mounting Box Manual (DEC-11-HR5B-D).pdf|H720 Power Supply and Mounting Box Manual (DEC-11-HR5B-D).pdf]]