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Mạch đo kiểm tra tụ ESR

https://cungchoinhac.com/mach-dien/mach-dien-tu/do-tu-hoa-tren-mach-esr-meter ESR meter (95$) too expensive. https://anatekinstruments.com/products/fully-assembled-anatek-blue-esr-meter-besr http://www.electronicrepairguide.com/build-your-own-esr-meter.html https://www.eevblog.com/forum/testgear/$20-esr-lcr-transistor-npn-pnp-mosfet-meter/ PNP transistor in WR 740 router http://www.icvn.com.vn/virtuemart/search?keyword=2SB772&limitstart=0&option=com_virtuemart&view=category http://kme.com.vn/products/b772-sot-89 http://www.icvn.com.vn/virtuemart/linh-kiện-smd-khác/transistor-mosfet-smd-30-sp/2sb772-smd.html http://igbt.com.vn/2sb772-b772-transistor-pnp-3a-40v-sot-89.html http://www.szct.com.cn/Cn/upload/B772.pdf https://linhkienbandan.com/shop/transitor-b772-2sb772-pnp-40v-3a-to-126/ https://linhkiendientu104.all.biz/ http://linhkientudong.vn/plc_c226.aspx [TODO] Move to new post WR740 https://phobosk.wordpress.com/2012/10/21/how-to-turn-your-tp-link-tl-w...