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![How to make an "IR Remote Tester" using IR Receiver Diode - TSOP1738 [Easy] - YouTube](https://i.ytimg.com/vi/62iWLGLmwOU/maxresdefault.jpg "How to make an \"IR Remote Tester\" using IR Receiver Diode - TSOP1738 [Easy] - YouTube")
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IR Transmitter and Receiver Circuit Diagram
