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3 Band graphic equalizer circuit
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This is a 3 brand graphic equalizer schema. By using this schema you will be able to get the maximum advantage.The high input impedance of the IC makes this schema compatible with most of the audio signal sources.The filter network can produce a +/- 20 dB enhancement or cut on the three frequency bands 50Hz,1KHz and 10KHz.POTs R1, R2 and R3 can be used for adjusting the gain of the different bands.
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NOTICE:
# The Circuit can be powered from anything between 6 to 30V DC.
# I am using 12V here.
# Increasing supply voltage will of course increase the gain.
# The IC must be mounted on a holder.
# The electrolytic capacitors must be rated higher than the supply voltage.
3 Band graphic equalizer circuit
This is a 3 brand graphic equalizer schema. By using this schema you will be able to get the maximum advantage.The high input impedance of the IC makes this schema compatible with most of the audio signal sources.The filter network can produce a +/- 20 dB enhancement or cut on the three frequency bands 50Hz,1KHz and 10KHz.POTs R1, R2 and R3 can be used for adjusting the gain of the different bands.
NOTICE:
# The Circuit can be powered from anything between 6 to 30V DC.
# I am using 12V here.
# Increasing supply voltage will of course increase the gain.
# The IC must be mounted on a holder.
# The electrolytic capacitors must be rated higher than the supply voltage.
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