I don't know much about these units other than they do fire. One is missing the glass dome, there's a chip off of the plug housing (pins seem fine) The fuse holder has cracked and the capture nut is gone. The mounting bracket on one of them looks to have been slightly pulled out. There's some corner crunches on one. They both have tube covers. Take a close look at the pictures. I've tried to be as upfront as possible, but like I said, They were in an auction lot and I don't know too much about them. Get them if you've already got some, for parts or make 1 complete one? No reserve.