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225,976 reputation

Andy aka top 0.04% this year

I'm an analogue electronics design engineer by trade and a music hobbyist in my part-time. I live in Stafford, England. My music composition website is here. I do "sing" so be warned.

I have also begun a website for my analogue design service. Feel free to make comments on It gives me the chance to enhance my Java skills: -

Interactive RLC low pass filter type 1

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Interactive RLC low pass filter type 2

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I'm also writing a beginner's guide to digital filters aimed at rusty analogue engineers. I had to learn the hard way and although there's some useful stuff contained, there are still some areas in it I've not covered very well. If you want to take a look and comment/help/advise it's HERE.

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