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1. [Amps] What causes arc over on the BeO2 ceramic insulator of an 8877? (score: 1): Author: John Farber <kg6i@comcast.net>; Date: Fri, 30 Aug 2013 13:24:35 -0700; What causes these to occur, how can they be prevented, and is it possible to safely remove the carbon track made by the arc and return the tube to normal operation at the same typical bias voltages a; /archives//html/Amps/2013-08/msg00186.html (8,439 bytes)
2. Re: [Amps] What causes arc over on the BeO2 ceramic insulator of an 8877? (score: 1): Author: peter chadwick <g8on@fsmail.net>; Date: Sat, 31 Aug 2013 10:12:13 +0200; John, Are you sure the ceramic insulator in an 8877 is BeO2? It is not mentioned in the data sheet, and generally, where BeO2 is used, the fact is mentioned because of the problems of dust. 73 Peter; /archives//html/Amps/2013-08/msg00187.html (6,996 bytes)

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