In the article by Joachim Gerhard in Vol 0, "Down the Rabbit Hole - Adventures in the land of Phonostages", some text between pages 38 and 39 was left out through an error of mine.
The missing passage, with text before and after, is available as page 38a here. With apologies to Joachim!

Ovidiu Popa's article in Vol 1, `On the Noise Peformance of Low Noise Input Stages` contains an error. On page 150, middle of the page, the sentence: "The current noise decreases with the degeneration decrease....` should read ´The current noise decreases with the degeneration increase...`