| PARTS LIST | |
| R1, R2, R3, R4, R5, R6 | 27kΩ |
| R7 | 470kΩ |
| R8 | 330kΩ |
| R9 | 100kΩ |
| R10 | 4.7kΩ |
| R11 | 4.7kΩ |
| VR1, VR2, VR3, VR4, VR5, VR6 | 100kΩ |
| C1 | 100n (104) |
| C2 | 33n (333) |
| C3 | 10n (103) |
| C4 | 3.3n (332) |
| C5 | 1n (102) |
| C6 | 300pF (301) |
| C7 | 100µF 16V |
| C8 | 4.7µF 16V |
| C9 | 47µF 16V |
| IC1 | 741 Op amp |
This circuit is 6-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,. All potentiometers are linear 100kΩ. 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.
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,. All potentiometers are linear 100kΩ. 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.
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