[mohdfasieh]

hello ,
how r u genius guys .Well can u plz help me .Well i have made a amplifier with OPAMP in which i give input through mic and output through SPEAKERS.

Well i want to make the same  amplifier with the help of discrete components.
in which i can give input through mic then preamplifier with amplify it and then push pull transistor can amplify further.
well amplifier should be made with the use of BJTS.

thz in advance.It is just bcoz of u people i think i can make that ciruit with discreta components.

thz

 

[ante1]

The LM 386 works between the mic and the speaker!

 

[gogo2520]

Hi mohdfasieh
    What kind of mic do you plan on using?
                                        gogo

 

[Shahriar]

Here the preAmplifier you need.
Use Bias Resistor If you have an Electric Mic and remove it if you have a dynamic Mic.

You can Find the Power Amplifier from the Project section of this site. It has used a NE5532 and a Push Pull at the output.

I have built these two and works very well.

HTH - Shahriar

Precious_PreAmp_Kit.pdf

 

[ante1]

Hi Shahriar,

Do you think this circuit would drive a speaker or speakers?

 

[Shahriar]

About the PreAmplifier I sent, I should say that, I do NOT think if it will drive a Speaker.

The Output of this preAmplifer Should be connected to a Power Amplifier Like that 10W Amplifier in Project section as I said Before.

I sent these, Because gogo2520  wants to build a descret circuit.

HTH - Shahriar