12/27/2024
School is out, so my sidekick and I stopped by the museum to ring the 1930s NBC Chimes featured in The Radio Exhibit.
This device is an early version of the NBC chimes. It was used in productions originating from an NBC affiliate station in Tennessee, believed to be the originating station for the Grand Ole Opry.
These Deagan dinner chime units were used throughout the NBC Network until the late 1930s when they were replaced by an electronically generated signature produced at one of the network's headquarter stations.
By the 1930s, the familiar three-note tone became the standard. While the NBC tones became a signature of the network, their original purpose was to notify the engineers, at telephone company switching stations, that a network program was about to go onto the line.