kathy joseph

History of Electricity with Kathy Joseph (Kathy Loves Physics) — EEVblog 1506

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3-phase motor history.  Tesla.  AC power.  Alternating current.  Power grid. https://www.youtube.com/watch?v=4EcQYK_no5M   a general overview of the history of electricity: Ancient Discoveries: The concept of electricity has been known since ancient times, with early civilizations observing phenomena such as static electricity through rubbing certain materials together. Benjamin Franklin and Lightning: In the 18th century, Benjamin … Read more

History of Cathode Ray Tubes with Kathy Joseph — EEVblog 1577

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https://www.youtube.com/watch?v=CnJ7mQ_Fo-8   Book: “LIGHTNING TAMERS”   Fathers of vacuum tube / electron valves LEE DEFOREST — https://www.youtube.com/watch?v=CnJ7mQ_Fo-8 EDWIN ARMSTRONG (super heterodyne) — https://duckduckgo.com/?q=vacuum+tube%2C+armstrong REGINALD FESSENDEN — https://en.wikipedia.org/wiki/Reginald_Fessenden First image created by CRT — Maltese Cross. Crookes member of Golden Dawn. Occult all wrapped up in this. One purpose was to contact dead.   ERIC DOLLARD talked about this … Read more