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Make a Simple Audio Amplifier

Step 5GAIN Controller

GAIN Controller

4-Now join the 1st pin of IC with the A pin of the 5 k ohm variable resistor.
Join th A pin of this variable resistor with the C pin.Lastly join the 8th pin of IC with the B of this variable resistor.This becomes the GAIN.

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1 comment

Nov 4, 2010. 5:07 AMOXI2vasyl says:

help me !
i did all circuit and its works but GAIN doesnt work T_T!
my resistors are ok, i dont now what problem is happening.

Feb 17, 2011. 11:05 AMankitgarg2005 says:

I also made the same circuit it worked fine for me with high GAIN. may be ur IC is damaged.

Dec 6, 2010. 5:57 AMzabi_rauf (author) says:

Maybe you have connected them wrong

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