Dumont 3ABP2 Two Gun Cathode Ray Tube  
Written by AnubisTTP on 2009-10-21  


The 3ABP2 is a two-gun electrostatic deflection CRT, capable of projecting two beams at once. The tube's 3-inch screen is coated with a high persistence green phosphor. Though the separate guns share a common heater, each gun has it's own set of deflection plates and can be independently positioned. This feature makes it a favorite for homebrew electronics projects, as each beam can be dedicated to drawing a different portion of the screen.


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