Vibroplex is a manufacturer of gear for amateur radio, best known for the side-to-side mechanical, semi-automatic Morse key. Founded in 1905, the company is based from Knoxville, TN.

In a previous column we wrote about the museum’s Vibroplex Telegraph Key and promised follow up information about Samuel A. Morse, inventor of the telegraph and its code. Certainly the telegraph was a ...

On display in your Vanishing Texan Museum is a Vibroplex Telegraph Key. It is number 65,000 of over 300,000 that have been made and was used in the Jacksonville, TX train depot sometime in 1913.

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Semi-automatic keys like this ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Telegraph keys are electrical on-off ...