Pre amplifier with transistors BC548| Circuit Project

Pre amplifier circuit with transistors can be used to supply source from 6-12Volt the current minimum is 2-3 mA and can extend the signal strength from up to 2 Volt, which can
This will signal the driver to easily power amplifier and frequency response can be frequency response from 70 Hz – 45 kHz at -3 dB and distortion less than 0.1%.
By entering into power supply circuit and one audio Input. The signal is coupling through C1 to prevent DC Voltage to Harry and then audio goes into the leg B of Q1 to amplify signals to forces up to the one with the R1 and R2 is the organized bias for Q1 is Q1. and Q2 is connected to a direct coupling circuit broadcast better. Then the signal was expanded to export the C leg of Q2 and through C5 coupling signal to smooth out and send it to Su output gain of the circuit, which can be set from the R6/R5 C3 acts as a wizard. high frequency response better.
R9 is connected to the circuit when the circuit for use in the nature of the pre mic R9 acts as the power supply to the mic condenser used if the nature of the pre amp is not integrated into the R9.

This entry was posted on Wednesday, June 2nd, 2010 at 8:46 pm and is filed under Pre Amplifier - microphone preamp.

Circuit diagrams and schematics - Electronic projects

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Pre amplifier with transistors BC548