Publisher's Note: “Characteristics of a symmetrical Cockcroft-Walton power supply of 50 Hz 1.2 MV/50 mA” [Rev. Sci. Instrum. 82, 055116 (2011)]

This article was originally published online on 26 May 2011 with two sections misnumbered and without a footnote for the author's e-mail address. AIP apologizes for these errors.

The article was correct as it appeared in the printed version of the journal. All online versions of the article were corrected on 1 June 2011.