installer2001 Posted February 3, 2006 Report Share Posted February 3, 2006 Hello,Guys how r u .Well can any body tell me the circuit of amplifier which really works.I have tried a lot of circuits but no body works." I want to give input through MIC Amplifier will amplify our audio signal and output is taken by Speaker(8 ohms or 4 ohms).plz plz tell me the circuit which really works.Well i am beginner in the field of electronics and this is our project.So plz tell an esy circuit." Quote Link to comment Share on other sites More sharing options...
audioguru Posted February 3, 2006 Report Share Posted February 3, 2006 1) Which type of microphone? Electret? Dynamic?2) How much power to the speaker?3) What power supply voltage? 13.8V from a car's battery?All of our circuits "really work". Some of them are "ezy" to make.What went wrong with the circuits you tried? Too much smoke? ;D ;D Quote Link to comment Share on other sites More sharing options...
Staigen Posted February 3, 2006 Report Share Posted February 3, 2006 Hi there installer2001, velcome to the forumLM386 cirquits usally works good, also TDA2002/TDA2003 cirquits! Many others are good too!A bad design can ruin the performace of an amp, make a good design! ;D ;D//Staigen Quote Link to comment Share on other sites More sharing options...
installer2001 Posted February 4, 2006 Author Report Share Posted February 4, 2006 Well can u plz send me the circuit which worksAny mic can be used,any speakerbut plz plz send me the ckt of amplifier that works Quote Link to comment Share on other sites More sharing options...
Staigen Posted February 4, 2006 Report Share Posted February 4, 2006 HiHave you tested the cirquit in the thread "sensitive parabolic microphone"?I belive it will work.//Staigen Quote Link to comment Share on other sites More sharing options...
audioguru Posted February 8, 2006 Report Share Posted February 8, 2006 This circuit is used in the parabolic mics sold in toy stores: Quote Link to comment Share on other sites More sharing options...
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