This Low Noise Dynamic Microphone Amplifier circuit has a absolute accretion of 200 times. If we use 200Ω microphones R4 charge be 220Ω and C1 is 4.7uF. If you appetite the to get the everyman babble arresting from this activating mic amplifier use metalic resistors for R3 .. R6 and for C1 use added MKM capacitor in alongside connection.
Some specification: with a 3mVpp ascribe arresting the achievement was 800mVpp. The best achievement voltage was 10Vpp back the ascribe is 50mVpp. The frequencies area is amid 50Hz and 100KHz.
