Thank you both, Jules and Jerry!
Your information was very helpful. I'm currently creating the order and had already a 50V capacitor on the list. The Mouser 3.3uF capacitor you mentioned in your Instructable recommendation has a 22 week delivery time in our area. The Digikey is available!?
What I couldn't find is the?Mogami W2697. I'll look for an alternative.
Thank you again!
Heinz