Two type D-IC2 triggers the distribution of the flip by D input/output connected to the role of the distributor. The output of the Q FF1 connected to FF2 clock input. produce a four counter. The output of IC4 and CMOS IC3 control switch. Into each switches allow switches work provided in linear range including bleeder low distortion audio signal.
The circuit will need a only 1 ma current in the power supply voltage for 5 V, can be increased to about 15 V.
Use the electronic map, through a single switch, can choose four independent stereo channel one of them. CMOS of components of the internal switch, in order to avoid cracking, usually in mechanical switch.
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