Published:2009/7/10 4:55:00 Author:May | From:SeekIC
Use of negative feedback in four-stage direct-coupled amplifier keeps gain constant within 1 db of 40 db from 6 cps to 300 kc. Input impedance is 8 meg end output impedance is 600 ohms.-Feed-back Increases Input Impedance, Electronics, 32:11, p 150-153.
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