Preamp for the speakers as a microphone 2 circuit. The resistor R1 serves as the polarization of the two transistors Q1 and Q2. At the same time, the transistor input matching has become an NPN.
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Description for Preamp for the speakers as a microphone 2
|1||Title:||Preamp for the speakers as a microphone 2|
|2||Upload by:||Amplifier Circuit|
|3||Upload date:||October 26, 2011|