Yes, I would call it successful. The Tek 4010 is now fully working.And your repair was successful??
I had a closer look at those photos on Reddit. I don't think the phosphor coating is gone, but the entire CRT is missing and replaced by a glass plate to cover the hole.[offtopic alert, though I am following this thread with interest]
@daver2 , you seem like the kind of person who might have a list of tantalum bead capacitor values for 4010-series terminals and 405x-series computers... I have a 4006 whose HV and Z-axis board has popped a tantalum or two, and a 4051 that I haven't dared power up yet. Is there a handful of values used in these machines that I could buy in bulk --- that way I can replace failures one by one, or perhaps replace every capacitor in one fell swoop? (I'm not sure what would be wisest.)
Slightly more related, a friend sent me this Reddit thread where a mysterious catastrophe has attacked the display: the entire coating of the screen is gone. It's a window now. I sent it to some folks at the VintageTEK museum and their guess is that the seal between the CRT bell and the faceplate failed: this caused a gust of wind to sweep the coating completely away. (By contrast, a vacuum failure at the neck usually focuses a blast at the centre of the screen, which creates a kind of "splat" scour pattern in images I've seen.
Not so, apparently. I shared the image with some folks at the VintageTEK museum, who identified some of the DVBST components (collimating anodes, flood guns, etc.) in the photo. They're about as mystified as the rest of us, but their best guess is that the leak occurred when the faceplate separated from the CRT bell around the edge, causing a laminar gust across the CRT and thus the complete scour of the phosphor + ITO coating. I'm still sceptical, but what we see is the real CRT internals, according to experts.I don't think the phosphor coating is gone, but the entire CRT is missing and replaced by a glass plate to cover the hole.