Variable Delay Line B312

Summary This document is a 1966 schematic diagram provided by the Digital Equipment Corporation for the "Variable Delay Line B312" circuit. The schematic details the electronic components and configuration required for the module, including a delay line (DEI), four transistors (DEC3009B and DEC3639B), multiple D664 diodes, and various resistors and capacitors. It also provides design specifications, such as a 250ns delay time and a 500-ohm impedance, along with a transistor and diode conversion chart for cross-referencing DEC parts with EIA standards.