Z Vex

“I started manufacturing in June of 1995. Our products are marked with a paint pen (now coated with clear coat) and have the date of manufacture written right on the bottom. Earlier products had the month/year painted on them by Jason Myrold, my old painter. [Source: Zachary Vex, email 19/3/2008]

Z Vex Schematics

http://analogguru.an.ohost.de/ZVex nano amplifier