Tutorial Reference # 135
Title: Microphone Mixer
Language: Electronics
Description: designed for three dynamic microphones.
Author: devilson
Added: July 29, 2007, 9:50 pm
Rating: Not rated
# R1-R3 are level controls. R9 and R11 control bass and treble, respectively.
# Since the circuit draws such low current, two 9V batteries can be used for a power supply.
# Building the mixer in a metal case will cut down on noise.
R1, R2, R3 3 1K 1/4W Resistor
R4, R5, R6 3 10K Logarithmic Pot
R7 1 1Meg 1/4W Resistor
R8, R10 2 10K 1/4W Resistor
R9, R11 2 100K Linear Pot
C1, C2, C5, C6 4 0.1uF Ceramic Disc Capacitor
C3, C4 2 22nF Ceramic Disc Capacitor
U1, U2 2 741 Op Amp
J1, J2, J3 3 Input Jacks Of Your Choice
MISC 1 Board, Wire, Knobs, IC Sockets
found at http://www.aaroncake.net/circuits/mixer2.asp
Language: Electronics
Description: designed for three dynamic microphones.
Author: devilson
Added: July 29, 2007, 9:50 pm
Rating: Not rated
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# R1-R3 are level controls. R9 and R11 control bass and treble, respectively.
# Since the circuit draws such low current, two 9V batteries can be used for a power supply.
# Building the mixer in a metal case will cut down on noise.
R1, R2, R3 3 1K 1/4W Resistor
R4, R5, R6 3 10K Logarithmic Pot
R7 1 1Meg 1/4W Resistor
R8, R10 2 10K 1/4W Resistor
R9, R11 2 100K Linear Pot
C1, C2, C5, C6 4 0.1uF Ceramic Disc Capacitor
C3, C4 2 22nF Ceramic Disc Capacitor
U1, U2 2 741 Op Amp
J1, J2, J3 3 Input Jacks Of Your Choice
MISC 1 Board, Wire, Knobs, IC Sockets
found at http://www.aaroncake.net/circuits/mixer2.asp