That looks like a handy device, especially in a situation where you've got to change a big group of CVs, like with a MIDI2CV8 converting Control Change messages to 0-10v CVs and the receiving device, ie a lighting controller, etc. is expecting bi-polar -5 to +5 control.
It would be great having an invert function too. There's never enough of these and it is a particularly useful thing, having a complement of some other function.
When considering interoperability, triggering is a concern and if this module also had the ability to convert a gate-trigger or pulse-trigger to an s-trigger (switch-trigger) it would be even more useful. The MIDI2CV8 has open-collector transistor outputs for this, but it once in the analog module realm it can be a stumbling block.
I don't recall the specific unit right now, but some trigger inputs are even bi-polar with the transition ranging something like +3 to -8??? It might be good to have footprints for trims as well as fixed, through-hole parts. An experimenter's corner that could have a relay, opto-triac, etc. easily wired in would be a plus.
As Cliff mentioned, the 9753 can be used to invert, boost/attenuate, and offset a CV and this is likely to be sufficient in translating control from one system to another.
Also, it isn't always such an obstacle when the operating ranges of different devices don't match if you understand what's going on with each. For example, if the summing inputs at the front-end of a VCO have a potentiometer connected as a voltage divider for Coarse control of Initial Frequency and an external input ranged for a bi-polar control, simply adjusting the panel control for a lower voltage will have the same effect as would offsetting a uni-polar control, negatively (nearly anyway, and maybe enough...). It's important to remember that Pitch CVs representing notes can't be run through other than x1 gain stages without the notes being affected--a sequencer outputting pitch cvs ranging from 0-10v can't be passed through a x0.5 gain stage without it's v/octave scaling changing to 0.5v/octave.
Related, there's a schematic for a CV ranging circuit over in the technical-bulletins / assembly-notes section of this site:
David. I have copied the schematic you included and it is linked below:
9748 Level Shifter schematic
If there are others you would like me to add, add them to our common drive or send them in an email.
Did you check the box, "Notify me when a reply is posted"? Below the Message Body box, this one one of the Options. It could just be a something that needs to be tweaked and I'm not up on this yet. Right now I'm working on figuring out why the Search feature isn't so effective. However, the second one down on the PAiA homepage will point to things here on PAiA Talk, ie enter 9505 and you'll get links to the Assembly Manual, Tips & Suggestions, etc. etc. etc.