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Bass-treble tone control circuit

Circuit diagram

The LM1036 is a DC controlled tone (bass/treble), volume and balance circuit for stereo applications in car radio, TV and audio systems. An additional control input allows loudness compensation to be simply effected. Four control inputs provide control of the bass, treble, balance and volume functions through application of DC voltages from a remote control system or, alternatively, from four potentiometers which may be biased from a zener regulated supply provided on the circuit. Each tone response is defined by a single capacitor chosen to give the desired characteristic.

Wide supply voltage range, 9V to 16V
Large volume control range, 75 dB typical
Tone control, 15 dB typical
Channel separation, 75 dB typical
Low distortion, 0.06% typical for an input level of 0.3 Vrms
High signal to noise, 80 dB typical for an input level of 0.3 Vrms
Few external components required

Vcc can be anything between 9V to 16V and the output capacitors are
10uF/25V electrolytic.

author: Tasos Anagnwstou
e-mail: tasoti@panafonet.gr
web site: http://www.electronics-lab.com
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