Available as an assembled Module and as a DIY project.
This Module is currently available.
four precision faders
Knob - For each of the faders, use the knob to set the level of attenuation when the fader is on full. To do so, put the fader fully open then adjust the knob until the module is sending out the most voltage that you would like. Now the fader will act only from zero to this point.
Fader - The faders attenuate the voltage signal for each channel, allowing voltage up to the maximum set by the knob above.
Inputs - Are normalled together as a buffered mult from left to right. So you can plug in one cv signal and get up to four outputs with different attenuation. The first input is also normalled to a +5v offset (this is provided by a 5v regulator and does not require power from the 5v rail).
Outputs - As you would expect.
17ma at +12v
14mA at -12v