I'm trying to couple an audio signal from an given Circuit and Output it to a speaker. I have no experience with analog circuits and the circuit I already have is the result of searching the web.
I tried both circuits and I can see on an oscilloscope that there is analog output with both circuits. But as soon as I connect the 8Ω resistor there is no more signal and I can't hear anything.
Maybe someone can explain what I`m doing wrong and it would be very kind if someone explains why it is wrong.
Thanks in Advance
Thank you all for your help, all of your answers got me closer to a solution. I changed C4 to a higher value and got rid of the potentiometer and replaced it with a 20R resistor. Also i took a different speaker (from a phone) with 46R. Now I can hear the sound that is carried over the circuit (it is really quiet but it is ok since the speaker is just for testing purposes, it will be connected to the mic-in of a SoC later)
If someone has more information for me I'm thankful for any kind of help :)