User talk:Steven J. Koch/Notebook/Kochlab/2009/07/29/Feedback tweaking, noise, FTC

Andy Maloney 00:22, 30 July 2009 (EDT): Is the noise mechanical in origin? There may be ways of pin pointing where the noise is coming from if is is mechanical in nature. Also, do you think it could be coming from the QPD? I know there are some funky grounding issues associated with supplying power to it. I would like to help track down the noise issues so maybe I can get caught up with what is going on and help.