Like many before me here, I'm an electronics and Arduino beginner, at the point of wanting to hook up an 8-ohm speaker rather than just drive a passive buzzer, like the poster here . In that thread and others like it, dc42 has suggested a simple combination of a BC337 and BC327 (e.g. his reposted Sca…

novice confusion about transistors in simple 8-ohm speaker amp

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