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I read this the other day until I got a headache! http://www.edn.com/article/520749-Implem...UBM+Electronics
Notice that nobody made any comments.

Then I thought of your project Trumpy, and thought you might want to add some tilt to it.
Joe

Joe,

I like that filter!!!
Kind of looks like 1/3 of a Parametric Equalizer.

Mike,

I have a similar problem regarding personal Projects (the "Not Work Related / Fun Projects"), being that there is always some pressing task, which comes along right after I begin working on something non-work based!

Kind of sucks about the Plywood - more appropriate, the 'lack-of' Plywood.
Is MDF also difficult to obtain?

-- Scott

Scott,
Now if he had only come up with the Excel spreadsheet so that we could just plug and chug! I know, I know, There's probably already an "App for That!" I have absolutely no use for that filter but it might be a fun way to try out those digital pots I bought without having a use for them. (One of the ones that stores the last count in NOVRAM on power down.)
Joe