Character Generator

This document is an instruction manual for the VA38 20us Character Generator, a hardware option manufactured by Digital Equipment Corporation for the Type 338 and 339 Programmed Buffered Display systems. It details the installation, operation, programming, and maintenance of the character generator. The manual includes comprehensive technical information such as system specifications, wiring lists, system block diagrams, and ASCII character set encoding, along with specific engineering drawings and parts lists for the intensity amplifier modules and associated circuit components.