Something I quite often miss in many modules are the following simple but useful tools, a glide buffer, an attenuator and amplifier, and an offset. So, I made these three functions into one module. They are stand alone, but with switching jacks they are serial coupled. The glide buffer (or portamento) is based on the ASM-1 glide buffer and sets the time it takes for one control voltage to change to the other. The attenuator/amplifier goes from 2 times amplification to infinit attenuation. The offset moves the CV from +10V to -10V. Currently I've built just one, but will probably build another three modules.
Unfortunately there are no building instructions for this module, but at least you'll find the schematic, some photos, and some comments.
The finished module.
That's it! Have fun and set your CVs just right!