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.
passive filters use RLCs, no op amps or transistors. Active filters use powered devices such as op amps and transistors. Passive filters cannot yield gain. Active filters can give you gain. etc. etc.
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