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Materials and tools shown in the video: Precision open-end wrenches: https://amzn.to/36eSJnB Soldering iron: https://amzn.to/2Zh5L2s Stand: https://amzn.to/2Zfy8y8 Lead-free tin: https://amzn.to/2XbXASn or https://amzn.to/2z0neSn Flux: https://amzn.to/2Zi5YlZ or https://amzn.to/2ZhKbew Orifice desoldering needles: https://amzn.to/3cJ1U2n or https://amzn.to/2X9WsyL or https://amzn.to/2X931BJ Copper desoldering wick: https://amzn.to/3g4sx3w or https://amzn.to/3dWWYa7 Solder sucker: English: https://amzn.to/2WJg5P7 or https://amzn.to/2Tlmle1 Third hand: https://amzn.to/3dXtt85 TO220 heatsink: https://amzn.to/3dYZH30 or https://amzn.to/2ZhWAPA Potentiometers: https://amzn.to/3cLerlA or https://amzn.to/2X3ufK0 2N3055: https://amzn.to/2ZeY2C3 2N3055 heatsink: https://amzn.to/2WIEDb6 Related videos: ----------------------------------------------------------------------------------- Power supply restoration: • POWER SUPPLY REPAIR REG... How to build your own power supply: • HOW TO MAKE A POWER SUPPLY... Power supply construction: • POWER SUPPLY CONSTRUCTION P... If you are thinking of buying a power supply, here are some tips to help you... a power supply: ------------------------- DC 0-30V / 5A supply: https://amzn.to/3cJglTv DC 0-30V / 5A supply: https://amzn.to/2xWG38d Minleaf 30V 10A power supply: https://www.banggood.com/es/Minleaf-N... DC 0-30V / 10A supply: https://amzn.to/2VAARQG DC 0-32V / 10.2A supply: https://amzn.to/2xTLcxX DC 1-30V / 0-20A supply: https://amzn.to/2XYytoa DC 0-13.8V / 30A supply: https://amzn.to/3eNWggA Programmable DC 0-30V / 5A supply: https://amzn.to/351yF7A AC / DC supply 1-15V/5A: https://amzn.to/3cFnW5B DC 1-32V/ 0-20A power supply: https://amzn.to/2VThfWL DC 13V/33A cigarette lighter power supply: https://amzn.to/3eGuuml DC 2-channel 0-30V/5A power supply: https://amzn.to/2VwXOE2 Eventek 0-30V 10A power supply: https://amzn.to/2YD7nRY Uniroi 0-32V 10A power supply: https://amzn.to/38uvtmj Baku 15W power supply: https://amzn.to/38qwYSH Lavolta 30V 5A power supply: https://amzn.to/2PxP0tp Velleman laboratory power supply: One of the most common faults in power supplies is the 2N3055 power transistor, but in the case I show you in the video it works fine. Where to continue looking? We will see step by step how to find the fault in this DIDACIENCIA adjustable power supply and we will carry out the appropriate repairs. Don't miss it.