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Tone and volume control circuit diagrams

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Bass-treble tone control circuit
Bass-treble tone control circuit
December 13, 2010

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... [more]

Simple Digital Volume Control
Simple Digital Volume Control
November 26, 2010

This digital volume control has no pot to wear out and introduces almost no noise in the circuit. Instead, the volume is controlled by pressing UP and DOWN buttons. This simple circuit would be a... [more]

Automatic Loudness Control
Automatic Loudness Control
November 8, 2010

In order to obtain a good audio reproduction at different listening levels, a different tone-controls setting should be necessary to suit the well known behaviour of the human ear. In fact, the human ear sensitivity... [more]

Stereo Preamplifier with adjustment tone
Stereo Preamplifier with adjustment tone
August 8, 2010

Many times we needed to use a simple circuit of preamplifier, with few components and facility of made. This circuit use a opamp. the Motorola, TCA5550, that contains a double amplifier, as outputs for the... [more]

Audio Auto Fade
Audio Auto Fade
August 8, 2010

This circuit is design, in order to is heard the voice above the music. Useful for DJ, for small radio stations, for statements above the music, in shops etc. Also we can him use in... [more]

Equalizer with Parametric Mid
Equalizer with Parametric Mid
August 8, 2010

The circuit constitutes a natural extension of Mic-Line balance unit, but can be adapted to any other audio circuit. It is made up of two units in the series : A) A classic unit bass/... [more]

3 Band Equalizer
3 Band Equalizer
August 8, 2010

A classic circuit of regulation of tone of three way, with which we can regulate low, mid and high frequencies, of acoustic signal. The boost/cut can be regulated in the range of ± 18 dB/oct.... [more]

5 Band Graphic Equalizer
5 Band Graphic Equalizer
August 8, 2010

Other one unit of graphic EQ. five bands. The basic difference with the other circuits is, that I use instead of IC, transistor and the power supply, go up in +/- 24V DC, ensuring low... [more]

6-Band Graphic Equalizer
6-Band Graphic Equalizer
August 8, 2010

The EQ-2 it is a circuit of graphic equalizer 6 band of regulation. Each band is regulated from the potesometers RV1-6, that are, for better optical indicate of regulations, Fader. This does not mean that... [more]

10 Band Graphic Equalizer
10 Band Graphic Equalizer
August 8, 2010

The circuit of graphic equalizer, allocates ten adjusting potesometer , that each one from them affects in a predetermined area of frequencies, the central frequency of which abstains a octave (double), from the central frequencies... [more]



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