To etch copper, an acidic solution of copper chloride and hydrochloric acid may be used. Gather copper etching materials with tips in this free electronics video.
Etch copper - Part 1 of 15
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Etch copper - Part 2 of 15
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Etch copper - Part 3 of 15
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Etch copper - Part 4 of 15
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Etch copper - Part 5 of 15
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Etch copper - Part 6 of 15
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Etch copper - Part 7 of 15
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Etch copper - Part 8 of 15
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Etch copper - Part 9 of 15
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Etch copper - Part 10 of 15
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Etch copper - Part 11 of 15
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Etch copper - Part 12 of 15
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Etch copper - Part 13 of 15
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Etch copper - Part 14 of 15
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Etch copper - Part 15 of 15
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Apple's iOS 26 and iPadOS 26 updates are packed with new features, and you can try them before almost everyone else. First, check our list of supported iPhone and iPad models, then follow our step-by-step guide to install the iOS/iPadOS 26 beta — no paid developer account required.
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