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Sep 17, 2020 at 4:30 comment added Mats Karlsson @tlfong01 Im glad that you liked it and hope it help you on your journey in electronics.
Sep 17, 2020 at 1:38 comment added tlfong01 I watched the 4 minutes Youtube video on optocoupler and surprisingly found it also concisely giving a good and comprehensive guidance to newbies. I was particularly impressed by the use of newbie friendly colored text and also the selection of popular components like 2N2222 and PC817 which are widely used in the industry and commercial areas I gave both your answer and the video 5 stars (top 3%). Cheers.
Sep 17, 2020 at 1:24 comment added tlfong01 I very much appreciate your answer, concisely giving a good and comprehensive guidance to newbies. Cheers.
Sep 16, 2020 at 12:19 vote accept PacCol
Sep 16, 2020 at 12:00 history edited Mats Karlsson CC BY-SA 4.0
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Sep 16, 2020 at 11:54 history answered Mats Karlsson CC BY-SA 4.0