Ross, S (1 November 1961). "Faraday consults the scholars: the origins of the terms of electrochemistry". Notes and Records of the Royal Society of London. 16 (2): 187–220. doi:10.1098/rsnr.1961.0038. S2CID145600326.
Poole, Ian (2012). "Vacuum tube electrodes". Vacuum Tube Theory Basics Tutorial. Radio-Electronics.com, Adrio Communications. Archived from the original on 4 November 2013. Retrieved 3 October 2013.
Ross, S (1 November 1961). "Faraday consults the scholars: the origins of the terms of electrochemistry". Notes and Records of the Royal Society of London. 16 (2): 187–220. doi:10.1098/rsnr.1961.0038. S2CID145600326.
Poole, Ian (2012). "Vacuum tube electrodes". Vacuum Tube Theory Basics Tutorial. Radio-Electronics.com, Adrio Communications. Archived from the original on 4 November 2013. Retrieved 3 October 2013.