Fixing Battery Corroded Terminals is actually VERY EASY!

#electroplating #bruelkjaer #corrosion #repair #nickelplating 🔸 Second channel!    / @tony359_2   🔸 Join me on Patreon!   / tony3599   🔸 𝐁𝐮𝐲 𝐦𝐞 𝐚 𝐜𝐨𝐟𝐟𝐞𝐞: https://www.buymeacoffee.com/tony359 🔸 𝐅𝐚𝐜𝐞𝐛𝐨𝐨𝐤:   / tonystinkeringshop   🔸 My PCBWay Store (free designs): https://www.pcbway.com/project/member... In this video I am going to repair a Bruel & Kjaer Microphone Calibrator model 4231 and I will explore Electroplating at home 00:00 The broken microphone calibrator 02:02 Diagnosing the dead unit 04:31 How it works (manual & block diagram) 06:43 First fix attempt – battery contact issue 08:54 Opening it up – corrosion found 10:47 Deciding to nickel plate at home 12:07 Making the nickel acetate solution 18:01 Cleaning and polishing the terminals 19:42 Test plating a copper coin 22:06 Plating the actual terminals 27:18 Adjusting current for small parts 30:47 Reassembly and final result