In this video, I discuss low end digital oscilloscopes, then introduce, assemble, and test what I consider to be one of the better low-end (and very affordable) digital storage scopes. Then I give a thorough narrated video "User Manual" of the scope, and then discuss the scope's circuit design & schematic in some detail, and finally examine some apparent circuit improvements made to MY version of the scope that are more recent than the latest published schematic.