08:5508:55, 21 April 2016diffhist+12
Photomultiplier tube
minor edit, clearing up what RCA is, improving readability. Other option would be "Radio Corporation of America", but is apparently not used anymore
14:2814:28, 16 December 2015diffhist+28
Silicon dioxide
old citation contained original research from 2013, I replaced the citation original research from 2010, showing the same system, same structure
08:5508:55, 21 April 2016diffhist+12
Photomultiplier tube
minor edit, clearing up what RCA is, improving readability. Other option would be "Radio Corporation of America", but is apparently not used anymore
14:2814:28, 16 December 2015diffhist+28
Silicon dioxide
old citation contained original research from 2013, I replaced the citation original research from 2010, showing the same system, same structure