709K views · 6K reactions | Make a Flasher Circuit Using PC817 Optocoupler | Electronics idea bd | Facebook
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817K views · 5.4K reactions | guide on how to install an optocoupler IC on a power supply circuit PCB #electronics #optocoupler #ic #circuit #mainpsu #install #pcb #diagrams #tutorials #guide #solutions #service | Herman Suhaemi | Facebook
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817K views · 5.4K reactions | guide on how to install an optocoupler I…
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