Doepfer

the description of this modules mentioned old and new versions? But is 
there any way to physically/visually distinguish these? For the older 
version it says:

"the pressure sensor is made with conductive rubber located below the 
position sensor and works not as accurate as the very precise position 
sensor. The resistance of the conductive rubber changes with varying 
pressure and causes a variable voltage. But the coherence between 
pressure and resistance/voltage is not very accurate - except that an 
increasing pressure will cause an increasing voltage. Even some 
difference of the pressure sensor behaviour over the length of the 
manual may be possible as the conductive rubber has tolerances over this 
length."

Richard