Enclosure not stated

Simple Two Pole State Variable Filter

Schematic

Ref	Value	Normalized	Type	Notes
Resistors 11
R1	100k	100k		read from the schematic by eye
R2	100k	100k		read from the schematic by eye
R3	100k	100k		read from the schematic by eye
R4	100k	100k		read from the schematic by eye
R5	27k	27k		read from the schematic by eye
R6	100k	100k		read from the schematic by eye
R7	100k	100k		read from the schematic by eye
R8	15k	15k		read from the schematic by eye
R9	100k	100k		read from the schematic by eye
R10	100k	100k		read from the schematic by eye
R11	100k	100k		read from the schematic by eye
Capacitors 2
C1	100n	100n		read from the schematic by eye
C2	100n	100n		read from the schematic by eye
ICs 5
U1	CA3140	CA3140		read from the schematic by eye
U2	CA3140	CA3140		read from the schematic by eye
U3	CA3140	CA3140		read from the schematic by eye
U4	TL082	TL082		notch summer and highpass buffer; read from the schematic by eye
U5	TL082	TL082		lowpass and bandpass buffers; read from the schematic by eye
Potentiometers 2
P1	A100k	A100k	Potentiometer	dual-gang (P1a/P1b), 100k LOG; frequency; read from the schematic by eye
P2	100k	100k	Potentiometer	feedback/resonance (Q) control; read from the schematic by eye