I had sworn I would never deliberately make an analog noise source. Every transistor in the world is an analog noise source (Vladmir Ussachevsky used an FM radio tuned between stations at Columbia-Princeton). It seemed absolutely ridiculous to make yet another dumb analog noise source. However, making a SMART analog noise source is interesting. Inexpensive switched capacitor filters are available which are not typically used for music because they are thought to be too noisy. They also require a high frequency clock source. (John Blacet has gotten around this limitation by including a 5th analog pole to remove the clock noise, and I have heard good things about this design). In the case of the Wogglebug, the high frequency clock source is already designed in. And if the filter is dedicated to filtering noise, it's own clock noise will be masked. So the bottom 4 jacks on the Wogglebug (normally a multiple) will be the long awaited white noise source with some interesting new twists. Sorry, the filters can not be externally accessable. Final prototyping and board layout are happening this week. The faceplates are back from the anodizers and I expect to start shipping completed Wogglebugs in early September. Thanks to Dr. Mabuse for his valuable input and, as always, the signal to noise ratio of the white noise source will be 100%
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More Wogglebug details
2001-08-14 by grantrichter2001@yahoo.com
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