Because of it's ability to be used as a computer read-out, this model was a popular choice to use with the Heathkit EC-1 analog computer. As with many analog computer, the EC-1 was equipped with a rudimentary voltage meter. The addition of the oscilloscope allowed for a much greater variety of of output.
Nowadays, we are used to seeing the computer monitor & speakers as our "read-out" and they supply us with text, images, movies and sound. In the days of the analog computers, the outputs consisted of voltage meters, oscilloscopes and graphing machines.
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