freestompboxes.org

here is a list I have compiled on my blog. anyone have any others to share?

http://apocalypseaudio.blogspot.com/201 ... ators.html

I found it very useful

simple R-C filter rolloff http://www.muzique.com/schem/filter.htm
decibel calculator http://www.sengpielaudio.com/calculator-db.htm

I like this one for caps : http://www.electronics2000.co.uk/calc/c ... ulator.php

I keep an Excel workbook with a catalogue of my components and notes etc, and included a couple of pages of useful tools along with it. I did an Excel version of Jack's RC filter calculator along with a few other things like custom tapers and LED resistors etc. Some may find this useful as well.

cool, thanks guys!

It's shame I can press thanked button just ones