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.
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.
hiya guys im trying to build an led tachometer but I don't know what voltage the polyprop capacitors are I have attached the wiring diagram and here is the parts list any help would be appreciated
LEDs:21 LEDs of any color you want. I used bright white ones. You can use some green, some yellow &...
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