rubidium sulphide
1Video camera tube — In older video cameras, before the mid to late 1980s, a video camera tube or pickup tube was used instead of a charge coupled device (CCD) for converting an optical image into an electrical signal. Several types were in use from the 1930s to the… …
2Copper — For other uses, see Copper (disambiguation) …
3Mercury (element) — gold ← mercury → thallium Cd ↑ Hg ↓ Cn …
