Those seem to be really good tubes. These definitely have a slot midway inn the plate, and a small slot in the plate next to each insulator/support. I'll try to find some other EL84s today for a comparison. It always gets me that they could, and would, label something as made in the wrong country, that's just so wrong. I would imagine it hurt Craftsman tools very much to start stamping their stuff made in china, but hey, that's the truth of it. I guess there is better consumer protection these days.