21-04-2025, 05:41 AM
Fascinating images. How did you get access to CT facilities?
That 6/6 looks like one of the later ones with a separate cone and faceplate. Earlier tubes were blown from one piece of glass. The presence of lead is interesting. All earlier 6/6 tubes were made from pyrex (borosilicate) glass which I don't think is compatible with lead. Most, if not all, later CRTs were made of soft (soda) glass which can have lead added. It's possible that some later 6/6 were soft glass.
That 6/6 looks like one of the later ones with a separate cone and faceplate. Earlier tubes were blown from one piece of glass. The presence of lead is interesting. All earlier 6/6 tubes were made from pyrex (borosilicate) glass which I don't think is compatible with lead. Most, if not all, later CRTs were made of soft (soda) glass which can have lead added. It's possible that some later 6/6 were soft glass.
www.borinsky.co.uk Jeffrey Borinsky www.becg.tv
