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.
I was given a school project on making an amplifier. Can anyone tell me how I can make a hand held amplifier to hear conversation from a distance that you could not normally hear. schmatic or something thanks
If the electronic ear is not enough amplification, you can add a simple amplifier circuit, using a cheap LM386 or LM741 amplifier circuit but this will add more noise, and more battery drain.
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