HiFi preamp with tone control


Posted on May 4, 2012

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.


HiFi preamp with tone control
Click here to download the full size of the above Circuit.

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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