This is one of the modules I always wanted to have. Just because I have read the book from Thomas Henry before I started on my DIY eurorack journey. This module is designed by Timo Rozendal based on the Thomas Henry design from his book. From the little contact I had with Timo he really seems a nice guy. This module can deliver anything from bassdrum’s to tom sound and anything in between.
https://soundcloud.com/timorozendal/demo-of-thomas-henry-bass-module
Difficulty to build: Easy to medium depending on your skill