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  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

saftey capacitor

  1. A

    Capacitor Protection?

    Hello, Sorry to ask such a small and simple question here guys but its a potential safety risk. Recently I applied 9v in reverse bias to a moderately large presumably Electrolytic Capacitor. My question is, did the black and metal small device at the top of the capacitor (it's a diode I...

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