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TDA1029 audio signal source switch circuit diagram electronic project

Using TDA1029 integrated circuit can be designed a very simple and useful audio signal source switch electronic project using few electronic parts.
The TDA1029 is a dual operational amplifier (connected as an impedance converter) each amplifier having 4 mutually switchable inputs which are protected by clamping diodes. Signal-sources switch can be made in various mods :
The input currents are independent of switch position and the outputs are short-circuit protected.
The device is intended as an electronic two-channel signal-source switch in a.f. amplifiers.
Electronic parts required by this electronic project are :R1,R2,R4,R13,R15,R16 - 120K ¼ Watt Resistor;R5,R12-5.6k ¼ Watt Resistor;R3-R14-680k ¼ Watt Resistor; C1-100µF pol; C2-C7 , C9-C12 ,C14-C20 220nF C8,C14 10µF pol; C11 47nF ; U1 TDA1029.

Electronic Circuits: 
Circuit Diagram: 
TDA1029 audio signal source switch circuit diagram electronic project

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