[sdiy] Quick CV output buffer query

[Tom Wiltshire]

Hi All,

I'm planning a inverting op-amp mixer mixing some CVs in a module. This is then fed to the standard CV output like Olivier has done here (page 2):

http://mutable-instruments.net/static/schematics/Yarns-v03.pdf

If my mixer uses 100K 0.1% resistors, I can be sure what I get out is the same (but upside down) as what I put in. No problem.

How do I arrange that with the output buffer? If I use 100K for the feedback resistor, and 1K for the output protection, do I need a 101K input resistor? How does that work?

Thanks,
Tom