Stick a 50KA in there for feedback instead of a 50KB and it's a LOT easier to dial in. Infinite is about 3 o'clock now rather than 11, and it still goes into oscillation past that no probs.
Update: Interestingly this doesn't work as well on the ZPSDX. Odd but true. It makes hardly any difference on the Analogue or Tape filter modes.
Ei Juansolo, I fond this post and it is interesting since Ive made a new post regarding this thing on he SPDX Zero point. I love the sound of the Tape mode simulating the De-7 but it goes into oscillation pretty quick. Have you got any clue on how or where on the circuit we can control the repeats just for the Tape section? Was going to try changing the pot to a Log type, but since you know it makes no difference perhaps I shouldn't bother.