ARTEC Quad Peak Controller

ARTEC Quad Peak Controller, this circuit was inspired by the historical 5 band tone selector used on vintage guitars. This is the active version. This circuit has the gain control and provides 4 different peak resonances. The low output impedance provides operation stability and low noise level. Position 1=Natural Position 2=Light Tone Position 3=High Peak Position 4=Mid Peak Position 5=Low Peak The system requires very little currents 0.16 mA from a 9V alkaline battery.  (more than 4000 hours in continuous use. - workable voltage: drop down to 2.2 V ). Includes wiring diagram, washers & nut.