The discovery of cathode-ray tubes happened in the year 19th century. In that period, the main intention of CRTs was mainly to explain and investigate the theory of the electron and this concept was known as cathode rays. And in the year 1897, a scientist named Karl Ferdinand Braun discovered the CRT oscilloscope. Whereas the invention of the dual-trace oscilloscope took place in the year 1930 by the British organization A.C. Cossor. The current day oscilloscope is the outcome of a various … [Read more...]

In the year 1897, the discovery of the Braun tube took place and in 1899, Jonathan included it along with magnetic field and beam developing plates in order to sweep the trace. In the initial period of 1920, cathode ray tubes were used practically for laboratory calculations but experienced bad strength of the vacuum and cathode emitters. To eliminate this drawback, Zworykin in the year 1931 discovered an approach of sealing the cathode ray tube using a thermionic emitter. This approach … [Read more...]