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“what did this Cathode-ray tube amusement device actually do??? couldn’t figure it out from the patent”

You would put your pre-printed target onto the CRT screen (like a picture of an aircraft or a ship). These were printed on a clear overlay so they lined up with a certain point in x-y space on the screen as the intended target point to hit. The player then controlled a point of light using x-y controls to hit the target (like you were shooting a missle, I think). It is described as being like a radar screen where you track your missles toward the target. The description says it could potentially make an explosion-like flash when the intended target point was hit, but I’m unsure if it actually was ever made to do that. There was probably some kind of drift put into the feedback to move the missle to make it more challenging. The description says it required skill to hit the target (making movements in both x and y at the same time like on an etch-a-sketch).