Tracing the Main Junction Wiring

To discover how the original relay and coupler components were designed to operate, the main junction board had to be analyzed.  To help with electrical chores, two students from the Electrical Engineering Department, University of Missouri were hired.  Pictured here is Eric Spoor.  Eric knew nothing about pipes organs when hired, but he was not intimidated. He viewed the junction board as "just another bunch of wires".

The main junction, on the right, has been replaced using telephone style punch down connectors.  The board on the left contains a series of ladder switches that couple harp, chimes, and echo to various divisions.    Over 26 miles of new wiring was used in the restoration of Opus 1280.