One instance of loudness control circuit

  
Figure 1-89 is an example of loudness control circuit. Potentiometer from the ground 30% of the total resistance at the tap. When the slide arm when screwed to the tap position
One instance of loudness control circuit - schematic

, found midrange attenuation 30dB, 100Hz bass attenuation of approximately 23dB (ie, relative to enhance 7dB), treble lOkHz attenuation of about 27dB (ie, the relative lift 3).




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