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In Reply to: RE: Cobalt mesh plates, blue glass, C37 shape/treatment... posted by jusbe on June 19, 2007 at 12:59:37
You probably didnt' really miss out. Those (Cobalt 2a3 mesh) were probably THE most problematic AVVT tube ever made. Many failed in the field, with no warning. I had a pair once (NOS) that I sold for a friend, not sure how they ended up or worked out, they fetched good money but personally I'd stick with the regular 2a3 avvt mesh, those were a lot more reliable. I still have a couple pairs but haven't tried them at all lately. Very nice looking tube, hard to come by these days. Sadly I think they will never be remade like that again (true mesh, not just mesh window ala EML)
-Ed
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