The A-167 compares analogue voltages and generates a gate which depends upon which of the voltages is higher. It is possible to compare two external voltages or an external voltage with a manually adjustable value.
Both analogue inputs have attenuators. A LED shows the current state of the gate output. The Gap control is used to adjust a so-called “hysteresis”. As long as this control is set to zero the switching levels for both on and off state of the gate signal are identical. As soon as the Gap control is turned up the switching levels for on and off state fall apart and a so-called hysteresis appears. Normal and inverted gate outputs are available. An Offset is available at the Analogue Sum socket, so the module can be used as subtractor and offset generator too.