Doepfer

I like the basic idea of the function. But I could imagine that a 
solution should be made on the electronic level but not at the 
mechanical level. I think about a module named "track&hold & change by 
catch up" ;-)

Principle: the incoming voltage is given to the output until a trigger 
(external or from a button on the module) happens. This trigger causes a 
"hold" of the voltage. The voltage is held until the value of incoming 
voltage "crosses" the stored value. It might be possible on analog 
level, but would be assumingly easier with a digital solution.
A thinkable extensions might be:
* first trigger holds, second trigger enables the catch up change.
or
* first trigger holds, second trigger gives the voltage free immediately 
(this can be achieved by existing modules already).


Florian