3x1 Mixer 9B functions similarity to the Dual Mixer 27B except that it is a single mixer.
A few extra features have been added to extend the functionality of this simple module.

Polarity toggle switch selects the mode for the input level control knobs. In Uni-polar mode the level knobs work as positive only attenuators. This is best for audio signals where the capabilty of having a fully off channel is desired.
Bi-polar mode changes the controls to be both inverting and non-inverting with zero in the mid position. This mode is ideal for processing control voltages as it allows easy selection of polarity.

  • Features:
  • Inverting and non-inverting outputs
  • Attenuators for each of the 3 inputs
  • Polarity switch
  • Clipping indicator

Specs: Input impedance: 100K ohms
Output impedance: 1k ohms
Signal Output: 10 V pk-pk
Signal Input: 10 V pk-pk

Current Requirements: