Original poster: "Gary Peterson" <g.peterson@xxxxxxxxxxxx>
I have placed a link to a short audio sample of a reciprocating mechanical oscillator in operation on the web at http://www.tfcbooks.com/mall/more/345ntem.htm .
I have placed the entire run of Walter Baumgartner's machine at http://www.tfcbooks.com/special/longer_sample.mp3 .