I tried this one first and ran into some problems. First no noise so I switched the BS170 around and got noise and a (nice) change in EQ but no boost. Dunno if I fried the transistor the first time around or what. I know I should debug, but it's such a simple build, and my original build was so sloppy that it's probably easier for me to do a whole new one.
This is the first one I tried:
http://www.aronnelson.com/gallery/main.php/v/album171/AMZ_Mosfet_Booster.gif.html (http://www.aronnelson.com/gallery/main.php/v/album171/AMZ_Mosfet_Booster.gif.html)
I think I like the look of this one better because it shows exactly where the drain and gate are so i can switch around the bs170 accordingly:
http://www.aronnelson.com/gallery/main.php/v/NaBos-Layouts/amz_mosfet_boost_001.gif.html (http://www.aronnelson.com/gallery/main.php/v/NaBos-Layouts/amz_mosfet_boost_001.gif.html)
I then noticed neither of them seem to be marked as verified, so has anyone built these with success?