📄 audio_mixer_6_ch_eng.htm
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<title> MIXER 6+ channel in English</title>
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<td width="100%" bgcolor="#800000"><p align="center"><font face="Arial"><em><big><font
color="#FFFF00"><strong>Audio Modular MIXER with 6 and up input Channel</strong></font></big><small>
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<td width="100%"><font FACE="Verdana" SIZE="2"><p ALIGN="JUSTIFY"></font><font
FACE="Verdana" SIZE="2" COLOR="#800000">A lot of friends ask me a circuit AUDIO MIXER, for
various uses. I will begin with a circuit which you can it manufacture, as you want. This
you can place in the MODULES of inputs any circuit you want, depending on the use that you
intend the MIXER, the same is also for the number of input channels, that you will
manufacture. Below I will give enough circuits with various levels of quality and
complexity. All the circuits that propose and are simple also they maintain, a very good
level of quality. For those who they are interested they can make few patience. Shortly I
will give project, professional level console of mix signals of sound. </font></td>
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<td width="100%"><p align="center"><img src="MIXER_1.gif" tppabs="http://users.otenet.gr/~athsam/Circuits/MIXER/MIXER_1.gif" width="768"
height="797" alt="MIXER_1.gif (29758 bytes)"></td>
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<td width="100%"><font FACE="Verdana" SIZE="2" COLOR="#800000"><p ALIGN="JUSTIFY">In the
Fig. 1 exist the main circuit of MIXER-6Ch. It is constituted by 6 input channels. The
channels from CH 1-4 are monophonic channels. The circuit that you will select for this
place, can be in input connection, BALANCE or UNBALANCE [ Symmetrical or asymmetrical ],
have POWER PHANTOM, for </font><font FACE="Verdana" SIZE="2">Electret</font><font
FACE="Verdana" SIZE="2" COLOR="#800000"> microphones, use various types plugs of input.
The channels CH 5-6, are intended for stereo use. The number of input channels they can
increase itself as long you want, making choice between mono and stereo of circuits. More
details for the input circuits I will give separately for each circuit. The output of each
channel drive the RV1-6, that potesometer regulation level of sound. With RV7-12 we create
conditions of balance between two channels [ panoramic potesometer [ BALANCE ]]. All the
signals from the input channels in this point are added by two adders [ IC1a-b ], for each
channel Here exist two trimmer TR1-2 that adjust the gain of each IC, adapting the level
of signal of output, in the level that we want. They can be suppressed if you do not need
such something. The next stage is a EQUALIZER [ Fig. 9 ], three band of regulation. The
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