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Old 2nd November 2003, 07:00 PM   (permalink)
Default CIRCUIT FOR ADDING GAIN TO AN AMPLIFIER

PLEASE GUYS I BUIT AN AMPLIFIER. BUT I WANT TO ADD GAIN TO THE OUT PUT TO BUST THE SOUND HOW DO I DO THIS...?/
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Old 3rd November 2003, 02:19 AM   (permalink)
Default how to add gain to amp

hi tim,

you did not specify what amp you are referring to, however i will presume it is an IC amp, but then again we dont know what IC amp is that.

the usual way is to put a feedback resistor.

here is the formula to use to calculate the gain: for Non-inverting input - Gain = 1 + feedback resistor/resistor in

for Inverting input - Gain = feedback resistor/ resistor in

hope this would help
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