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TI SN74LS138N - 4 Input NAND gate Schmitt Trigger
https://lcsc.com/product-detail/Others_Texas-Instruments-TI-SN74LS138N_C352964.html
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1 |
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LM386 –Audio Amplifier
https://lcsc.com/product-detail/Audio-Power-OpAmps_Unisonic-Tech-LM386L-D08-T_C87306.html
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1 |
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LM7805
https://lcsc.com/product-detail/Linear-Voltage-Regulators_STMicroelectronics_L7805CV-DG_L7805CV-DGThick-heat-sink_C3795.html
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Speaker (Optional for testing only)
https://lcsc.com/product-detail/Linear-Voltage-Regulators_STMicroelectronics_L7805CV-DG_L7805CV-DGThick-heat-sink_C3795.html
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Capacitors
https://lcsc.com/products/Ceramic-Disc-Capacitors_430.html
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