Frequency response display for use with a graphic equalizer

Details Frequency response display for use with a graphic equalizer Frequency response display for use with a graphic equalizer

G - Physics

01

R

324/36, 179/38,

G01R 23/00 (2006.01) G01R 23/16 (2006.01) G01R 23/165 (2006.01)

Patent

CA 1204159

ABSTRACT OF THE DISCLOSURE An indicator and display for use with a graphic equalizer which receives an audio signal and includes first and second band pass filters which receive the audio signal and pass different pass bands, first and second variable resistors which have control shafts and knobs connected thereto with illumination means mounted in the knobs, first and second rectifiers connected to the output of the band pass filters, and first and second drive circuits connected to the outputs of the first and second rectifiers and the drive circuits connected to the illuminating means in the knobs and an oscillator switching circuit connected to the illumination means so as to cause the illumination means to flash under certain conditions.

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