Here’s a vero layout for the Himmelstrutz Fetto. I also did a stripped down version with all switches and jumpers hardwired in the default setting. Both of the layouts are based on information from this thread over at freestompboxes.
Note that the correct transistor has yet to be determined, but it’s a JFET with D G S pinout. I’ll update the layout if/when the identity of the JFET is discovered.
Update (03.05.2011): Built the “full” vero yesterday, and although I was unable to find the correct transistors it did sound good using either 2SK117 or 2SK170, so I guess the vero itself is now verified.
Update (03.09.2011): I’ve successfully built this and I’m calling it verified. The only uncertainty is the exact transistors used in the original unit, but in my experience 2SK170s work just fine.
Update (10.12.2011): The stripped-down version is now also verified thanks to adamk. I also updated the layouts with the reputedly correct transistor (2SK170GR).
Update (28.12.2011): There have also been reports of the 2SK170BL sounding better than the supposedly correct 2SK170GR, so you might want to try both and make up your own mind.
Update (19.04.2012): Boxed the stripped version as a 2-in-1 with the King of Tone single version. The Fetto part is on the right side.
Update (18.07.2012): Forgot to mention a cut underneath R14 on the “stripped” version.