CV Mixer?

[Paul Wilkinson]

I need to make a CV mixer.  I want to be able to scale a couple of input
voltages and add an offset.  I was wondering if someone could comment on
this circuit (no laughing).

Do I need to 100K resistors between the pots and the follower?

Also, how hard is it to have the voltages invert when you turn a pot to the
left of 12 o'clock?

- Paul

v in
|
|
|
100K <----- 100K ----- follower (see below)
pot
|
|
|
gnd


v+
|
|
|
100K <----- 100K ----- to same follower
pot
|
|
|
v-

follower looks like this:

|\
---|+\
|  \________________o  out
|  /     |
|-|-/      |
| |/       |
|__________|

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