Remember, a cathode ray tube, at the time, was essentially a laboratory curiosity and required a lot of ancillary equipment and know-how to operate.

Originally, analog oscilloscopes employed cathode ray tubes (CRTs) to present electrical signals. Analog circuits controlled the scanning beam of the CRT.

It was shown more than two years ago by the work of Baker and Robb that a cathode ray tube could be used to record an infra-red spectrum, and the spectroscopic panel of the Hydrocarbon Research ...