Can you help me to identify the parts? I am a student... (beginner). Thanks, Anne
So, you have heard the expert opinions. But I have some other opinion.
Make this task to learn some tools. So let us begin at the beginning.
1. Make a list of the items shown in the schematic. We have several transistors, resistors and capacitors.
We shall also need a microphone and a speaker and a battery (power source).
Not shown, but it will be useful to have a switch (power on/off) and an indicator (say a 3mA red LED).
There is a level control that can be used as a volume control. So you will be needing a potentiometer with a knob.
2. I have some familiarity with gEDA tools and I shall recommend you to use them. They are excellent for learning from the ground up.
So you need to download and install the relevant software. The source documents are here:
https://github.com/lepton-eda/lepton-eda
Whether you are a windows man or a linux geek, the tools of the trade are very similar. So you should be able to install them without much problem (do not count small problems). Because it is free and open source, you can get free help at several forums.
3. Do not feel inhibited: you are going to learn a very modern tool and if you do not understand everything, that is fine.
You need to put the schematic in the right style: use the first program of the lot: lepton-schematic.
Before you make your PCB and listen to your favorite music, you also need to learn another software: the simulation program: SPICE.
This too is about 50 years old but still going strong. Good to learn the popular tool.
I suggest, as before that you learn a free tool. You shall get some confidence. So download ngspice and install on your machine.
3. Now you need to hunt for components and collect them in a box. They are all cheap but getting few at a time can be expensive. Also keep few extra (because you may damage some- but that is part of the learning process).
Once you have completed these set of tasks, please come back and ask for the next steps.