|
Click Here to View Circuits
|
LM741
op amp ic |
|
1
megohm resistor |
|
6.8k
ohm resistor |
|
1k
ohm resistor |
|
0.47uF ceramic capacitor |
|
electret condenser microphone |
all resistors are 5 or 10 percent tolerance, 1/4-watt
all capacitors are 10 percent tolerance,
rated 35 volts or higher
this circuit amplifies the output of a regular electret
condensor microphone quite nicely.. adjust sensitivity
by turning R1 |
