I probably wouldn't use this particular circuit to drive a speaker because of how much power that would require. In theory, you could make Rc 5 ohms and use a really beefy transistor + heat sink. With 5 ohms at 15V, that's going to have to dissipate about 45 watts, and the transistor will be sinking 3A of current.
Awesome tutorial !.....cheers.
What would need to change if the load resistance is much lower? For example, a speaker that is only 5 ohms. Great video!
I probably wouldn't use this particular circuit to drive a speaker because of how much power that would require. In theory, you could make Rc 5 ohms and use a really beefy transistor + heat sink. With 5 ohms at 15V, that's going to have to dissipate about 45 watts, and the transistor will be sinking 3A of current.