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LM317 Adjustable Voltage Regulator Power Supply LM317 DC-DC Converter Buck Step Down Circuit Board Module Linear Regulator

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TDA2050 DC 12-24V 5W-120W Mono Audio Amplifier Board Module Single Power Supply Volume Adjustable

L7805 L7812 LM7805 LM7812 DC/AC Three Terminal Voltage Regulator Power Supply Module 5V 9V 12V Output Max 1.2A

DC 2V-12V miniature FM transmitter module with microphone 85MHz --115MHz Single Channel Wireless Microphone Transmit Board 9mA

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1Set IR Infrared Transmitter Module Ir Digital 38khz Infrared Receiver Sensor Module With Remote Control For Arduino

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TZT DIY Electronic Kits Wireless stereo FM Radio receiver module 76MHz-108MHz DC 1.8V-3.6V