10_CPS_TO_100_KG_BANDPASS

Published:2009/7/21 6:20:00 Author:Jessie | From:SeekIC

Input impedance is over 1 meg. Can be used in microphone case to raise power level of signal above that of interference. Both positive and negative feedback are used. Q1 and Q3 are 2N1086A, and Q2 is 2N414.-J. J. Tiemann, Transistor Amplifier with Adjustable Impedance and Gain, Electronics, 35:15, p 68-69.



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