The A-134 is a dual (linear) VCA configured as a voltage controlled panning module. Two inputs are available that are mixed together and fed to the panning VCA’s, the base pan position is set with a front panel control and then two further external CV’s (one with a depth control) sweeps the pan position.
Two LED’s indicate the panning position. Besides the stereo output, a mono mix output is also provided. The VCA’s work in opposite directions, so as one increases in gain, the other decreases. Besides normal pan functions, the A-134 can be used to morph for example the output of two different VCF types.