Hi, I found this circuit on this site and would like to know if this would be suitable for a listening device for using around the automotive area. Instead of using a speaker I would like to use headphones would I need to change any components for this to work.
The bare-bones LM386 amp circuit will pickup all kinds of background noise but is simple.
The project from Aaron Cake has errors so doesn't work.
My Electronic Stethoscope-2 project fixes the errors in Aaron's circuit and works fine.
I am looking at building the Electronic Stethoscopes 2 by Audioguru. How important is the voltage rating of the capactors is it ok to have a large voltage capactor as I have most of what is required but the voltage is higher like 63V or 100V. What is a Metalized plastic-film Cap is this a MKT or Green cap.
How important is the voltage rating of the capactors is it ok to have a large voltage capactor as I have most of what is required but the voltage is higher like 63V or 100V.