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Lm833 based tone control circuit

2014-11-28 13:43  
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Using LM833 can be designed a very simple tone control circuit using few external components.
The ton control circuit from this diagram is designed using LM833 op amp ic manufactured by National Semiconductor and two RC filters ( low pass and high pass ) .
For this Lm833 ton control circuit can be used almost any type of operational amplifier if it have high input impedance .

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The LM833 is a is a dual general purpose operational amplifier designed with particular emphasis on performance in audio systems.
Using the formula presented bellow we can modify the frequency of the control circuit - the cut off frequency of RC filters (low pass and high pass )
lm833 tone control formula
For this control circuit presented in this schematic the frequencies are : fL = 32 Hz, fLB = 320 Hz and fH =11 kHz, fHB = 1.1 kHz

 lm833 tone control circuit
lm833 tone control circuit graphic diagram