The microphone amplifier
The amplifier is assembled by operational amplifier CMOD.
Main features are as follows:
The voltage, V +/-15
Input voltage, mV 1
The output voltage, mV 250
The frequency range 20 Hz...20000
Signal/noise ratio, dB 60
The amplifier is powered by a bipolar power supply voltage of 15 volts. The diagram shows one channel of amplification, and is given in brackets pin numbering for the second channel.