Building the Muffsy Phono Preamp PP-3 By skrodahl in CircuitsAudio4,132213Save PDFFavoriteIntroduction: Building the Muffsy Phono Preamp PP-3By skrodahlplus.google.com/1147043529803768FollowMore by the author:This instructable is outdated, visit Muffsy Home Page for the Muffsy Phono Preamp PP-4.