sound amplifier schematic

H

harm

New Member

• Feb 5, 2005

• #1

hi ive been looking for a simple but powerful sound amplifier since ive had problems with my ears since i was youngerits a rare condition somedays a i can hear better than other days sometimes worse so i thought id try it if anyone has a sound amplifier that its simple but really powerfull i would like to have it also the smaller the better i dont wanna look weird

thanks

 

williB

New Member

• Feb 5, 2005

• #2

mix Hydrogen Peroxide and warm water ..
half hydrogen peroxide and half warm water ..
and let it soak in your ears.. maybe they just need a good cleaning..

 

williB

New Member

• Feb 6, 2005

• #3

do you need this amplifier to be portable , battery powered ?

 

R

Russlk

New Member

• Feb 6, 2005

• #4

Look up the data sheet for LM386, that is a simple amp and small, should fit your purpose.

 

williB

New Member

• Feb 6, 2005

• #5

thanks Russlk,
https://www.electro-tech-online.com/custompdfs/2005/02/LM386.pdf

 

H

harm

New Member

• Feb 6, 2005

• #6

thanks ill look that up

 

C

cs200939

New Member

• Nov 4, 2010

• #7

hey heres this circuit digram for an LM386 audio amplifier from techlib.can i use an electret microphone as an input?

 

Attachments

• LM386amp.gif

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audioguru

Well-Known Member

Most Helpful Member

• Nov 4, 2010

• #8

Most likely the amplified speaker will be heard by the microphone and the system will produce feedback howling.
The system will probably produce sound pressure levels higher than 80dB which will destroy your hearing.