Juergen Haible Tau Pipe Phaser

BOM  jh_tau_bom.pdf

Important update:
I noticed that the 100nF 0805 SMD bypass capacitors that I've soldered into my prototype are only rated for 25V.
What you need, by any means, are 35V (or higher) rated capacitors.
While ordering new caps from Reichelt, I noticed that for 0805 parts, the 100nF come in 25V, but the 47nF are rated 63V.
So I ordered a bunch of 47nF/63V 0805 caps for future use in my electronics lab.
Bottom line for you:
If  you can actually get 0805 parts 100nF with 35V or more, it's fine to use these.
If not, go for 47nF with 35V or more.