6 Band Equalizer With One Ic LM741
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Transcript of 6 Band Equalizer With One Ic LM741
6 Band Graphic Equaliser Using 741 Op-Amp IC
6 Band Graphic Equaliser Using 741 Op-Amp ICWith this circuit you can control and blend frequencies and tones as desired.Essentially, the circuit consists of an IC 741 whose gain at various freguencies is determined by corresponding potentiometer setting.
The audible frequency spectrum is covered in six steps: 50Hz, 160Hz, 500Hz, 1.6kHz, 5kHz, 16kHz. All potentiometers are of 100k linear type. The circuit provides adequate boost / cut for normal use.PARTS LIST
R1, R2, R3, R4, R5, R627k
R7470k
R8330k
R9100k
R104.7k
R114.7k
VR1, VR2, VR3, VR4, VR5, VR6100k
C1100n (104)
C233n (333)
C310n (103)
C43.3n (332)
C51n (102)
C6300pF (301)
C7100F 16V
C84.7F 16V
C947F 16V
IC1741 Op amp
power supply for the circuit can be derived from the amplifier / preamplifier itself. The wide rangeof supply voltage (6V-15V) makes the circuit very versatile. Power consumption is negligible