Simple Audio Booster (need help)

U

usamamustafa

New Member

• Apr 13, 2010

• #1

This is a circuit diagram which i want to use it as a project. Can you please tell me that which type of audio input & output would it be applicable for this circuit like (how much watts).

Kindly please help me to perform manual calculations for this circuit.

 

Attachments

• CHEAP AUDIO BOOSTER&.JPG

  20.9 KB · Views: 253

Nigel Goodwin

Super Moderator

Most Helpful Member

• Apr 13, 2010

• #2

It's only a pre-amplifier, it won't supply 'watts' at all, it needs to feed an amplifier.

 

Hero999

Banned

• Apr 13, 2010

• #3

It's a small signal audio pre-amplifier with a gain of just under 18.

It's used for connecting a microphone to an audio amplifier.

The input power is a couple of nW and the output power is a few hundred nW which is still to low to drive an earphone, let alone a speaker.

 

U

usamamustafa

New Member

• Apr 13, 2010

• #4

thnx can any 1 help me in performing manual calculation ? like what Voltages do Base, collector & emitter will have?

 

MikeMl

Well-Known Member

Most Helpful Member

• Apr 13, 2010

• #5

Compare your calculations to this

 

Attachments

• Preamp.png

  24.5 KB · Views: 184