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How to make Solid State Relay using BT138-600 Triac | Relay, States, Usb flash drive
How to make Solid State Relay using BT138-600 Triac
What you need to build this Solid State Relay BT138-600 Triac MOC3020resistors 470K& 330&470Circuit diagram + Gerber file + pcb | https://www.mediafire.com/...