DIY Cable Tester
When I first started working in audio I built a lot of cables. I wanted them to be reliable so I needed a quick and accurate way to verify that my cables worked. I’ve seen some cool testers over the years, but none supported the combination of connectors I commonly used. So I decided to build my own. I purchased parts: plastic enclosure, bread board, five-way switch, four LEDs, four resistors, hardware for a nine volt battery, and a pair of all the connectors desired.
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Curious how the tester is wired? Want to build your own? Here’s a schematic.