Blackgroundcorn as wave-function circuit-probe for statistical audio-dynamics

Blackgroundcorn is a simple circuit.  2-lead probe is feedback sensor in a hysterical multivibrator circuit, oscillator that detects resistance and also responds to non-linearities such as silicon, in an audio-dynamical survey of dead/mistake circuit boards to find their "composite wave-function" http://www.ciat-lonbarde.net/TIMARACURRICULUM/TIMARATERIALS/index.html