LOW_COST_HIGH_LEVEL_PREAMP_AND_TONE_CONTROL_CIRCUIT

Published:2009/7/7 5:34:00 Author:May | From:SeekIC

This preamp and tone control uses the JFET to its best advantage; as a low noise high input impedance device. All device parameters are noncritical, yet the circuit achieves harmonic distortion levels of less than 0.05% with a S/N ratio of over 85 dB. The tone controls allow 18 dB of cut and boost; the amplifier has a 1-V output for 100-mV input at maximum level.



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