A CV/Audio Mixer with Dual VCA.

CV sections

Blend has two CV sections each with:

1. Input (normalled to a +5V signal)
2. Attenuverter
3. Output

CV Mixer section

Blend takes the outputs of the two CV sections and offers the following:

1. Min output
2. Max output
3. Comparator output (level brought down to 4.5V)
4. Sum output

The min and max sections do not attempt to be precision min/max measurements. They will be within two diode drops of the actual min or max voltage.

VCA Sections

There are two VCA sections that are also have a mix output. The CV input for each VCA is normalled to the output of a CV section. The VCA circuits are LM13700 based so they will slightly color the sound. The response curve is nearly linear but offers a slight exponential curve.

Power:

• 40 mA +12V
• 40 mA -12V

25 mm deep