Is there a convenient way to determine polarity of a electrolytic capacitor that isn't visible to you (you only have access to the wires)?
In short, someone is helping me seal a large number of 10,000uF electrolytic capacitors by dipping them in plastidip. They will have black and red wires attached to the terminals before they are dipped, but I'm not the one attaching the wires so I need a way to electrically verify that the wires are on the correct pins before I put them into service. Basically I'm looking for human assembly mistakes. Is there any easy way to accomplish this electrically? I want to make a small test rig that gives me a green LED when the capacitor is connected properly, and a red LED when it's connected wrong.
In short, someone is helping me seal a large number of 10,000uF electrolytic capacitors by dipping them in plastidip. They will have black and red wires attached to the terminals before they are dipped, but I'm not the one attaching the wires so I need a way to electrically verify that the wires are on the correct pins before I put them into service. Basically I'm looking for human assembly mistakes. Is there any easy way to accomplish this electrically? I want to make a small test rig that gives me a green LED when the capacitor is connected properly, and a red LED when it's connected wrong.