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can you suggest me a preamp circuit. i tried one with lm358 but didnt work. And i am a bit confused how to connect 3.5mm jack to the output. It would be very great if u pointed me the right direction.
I want to increase the range of my mic which i am using in my pc. Right now i am using a mic from torn from a headphone connected it directly to 3.5mm jack. but the range is very bad. Can i use a pre-Amp to to boost it. If yes then please suggest a preamp circuit which can be used with 3.5mm...
Ok then i will use your circuit. And i am using ir because i am making a remote control module to control tv from mobile. And as i asked can i use lm358 instead of lm386 in your circuit asi have the ic right now. Otherwise i have to go and buy lm386..
Thank u very much. I will try this circuit. But what resistance should i use for infrared led. And is there any problem if i try the circuit with lm358
Hey guys i am trying to aplify sound signal from my phone to glow LED(IR). i am using lm358 dual op amp. But i am haveing lots of problem. Like powering the ic, connemting ground and virtual ground n all. I am new to electronics. Plz sm1 hlp me make the circuit.
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