5408458 periphIndicator

This document is a proprietary electrical schematic for a "Peripheral Indicator Panel" with the part number 5408458. Dated 1969 and copyrighted by Digital Equipment Corporation, it is intended for test and maintenance purposes.

The panel's circuitry is organized around eight "FLEXPRINT CONNECTORS" (labeled #1 through #8). Each connector interfaces with multiple individual indicator lamp circuits. Each circuit typically consists of an indicator lamp (specified as I209219) driven by a transistor (type DEC3009B, which converts to 2N3009).

The panel operates with a +6.5V power supply and a Ground (GND) connection. Four components labeled C1, C2, C3, and C4 are depicted as capacitors in the power input sections. While a general note specifies "CAPACITORS ARE 39MFD 10V 10%", another note states "C1-C4 INDICATES JUMPER," introducing an ambiguity regarding the exact function or implementation of these specific components.