This circuit is 7-band graphic equalizer, you can adjust the sound of low, medium and higher than the IC op amp circuit used 741. With this circuit you can control and mix of frequencies and tones to your liking.
In essence, the circuit comprises an IC 741, whose gain is determined by several freguencies adjustment potentiometer.
Audiblefrequency spectrum is covered in six steps: 50Hz, 160Hz, 500Hz, 1.6kHz, 5kHz 16kHz, Level. All potentiometers are linear 50kΩ. The circuit provides adequate boost / cut for normal use.
power supply for the circuit can be derived from the amp / preamp itself. The supply voltage range of rangeof (6V-20V) makes the circuit very versatile. Power consumption is negligible.
list Component
In essence, the circuit comprises an IC 741, whose gain is determined by several freguencies adjustment potentiometer.
Audiblefrequency spectrum is covered in six steps: 50Hz, 160Hz, 500Hz, 1.6kHz, 5kHz 16kHz, Level. All potentiometers are linear 50kΩ. The circuit provides adequate boost / cut for normal use.
power supply for the circuit can be derived from the amp / preamp itself. The supply voltage range of rangeof (6V-20V) makes the circuit very versatile. Power consumption is negligible.
list Component
R1,R2,R3,R4,R5,R6 : 27kΩ C1: 100n C6: 300pF
R7: 470kΩ C2: 33n C7: 100uF/16V
R8: 330kΩ C3: 10n C8: 4.7uF/16V
R9: 100kΩ C4: 3.3n C9: 47uF/16V
R10: 4.7kΩ C5: 1n IC1: 741 Op amp
R11: 4.7kΩ
VR1,VR2,VR3,VR4,VR5,VR6: 50kΩ Linear Potentiometers
Hi, hallo... I am interested in this EQ circuit, and has it worked, and is it okay for me to copy it..?
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