Interesting. Are there any examples of these modules being used anywhere I'd love to hear what they sound like.

By way of reciprocation, I made a demo of the A-188-1B and 1-188-1D last night. When you listen to them, it becomes clear how the B version is a better flanger, and the D version is a better delay. You can hear them at https://soundcloud.com/doggiedogster/sets/doepfer-a-188-1-comparison