Flash Technology Drawing #2394 "Beacon Identification"

Flash Technology Drawing #2394 for 1152 Controller Board Factory Diagram titled "Beacon Identification."

This board diagram was drawn on 9-26-1977 and factory-stamped on 8-4-1983.

The 1152 is the original controller board for the oldest SC-105 system controllers, which featured jumper clips that you had to cut to set the beacon numbers for each tier in use. Later, the 2600 controller boards would replace it in later SC-105 controllers, which featured rocker switch assemblies to set which beacons were to be used for each tier.

One of my new-old-stock 1152-3T controller boards from 12-1977 is also featured in a couple of these photos.