Hi I'm pretty new to electronics, still reading through the volumes of info on this site.
I decided to take a break from reading and start building some simple circuits.
So I made a basic audio amplifier with the LM386N using a schematic on the datasheet. I plugged it into my computer and strangely enough im picking up signals (92.7 MHz) from a local radio station that's being amplified. You can also hear it faintly if its not plugged into a audio source.
I used different values for the capacitors and I didn't include a 10 ohm resistor after the .01uf cap cause I don't have one.
Another thing is I used speaker wire and a old headphone jack to make my audio input, I think that's is where I'm getting the leak-in. Could a low-pass filter fix this?
I decided to take a break from reading and start building some simple circuits.
So I made a basic audio amplifier with the LM386N using a schematic on the datasheet. I plugged it into my computer and strangely enough im picking up signals (92.7 MHz) from a local radio station that's being amplified. You can also hear it faintly if its not plugged into a audio source.
I used different values for the capacitors and I didn't include a 10 ohm resistor after the .01uf cap cause I don't have one.
Another thing is I used speaker wire and a old headphone jack to make my audio input, I think that's is where I'm getting the leak-in. Could a low-pass filter fix this?