I'm working through Experiment 11 of Make: Electronics (1st edition since I bought a component kit that matches that edition).
I have the circuit configured below, but I'm not sure that the loudspeaker is doing what it's supposed to do. The book describes the sound as an "insect buzz". What I'm hearing is more of a "tick tick tick".
What really makes me think this is wrong is when I read Step 4:
If you wanted to use this audio signal as some kind of an alarm, a steady droning noise is not very satisfactory. A pulsing output would be a much better attention-getter.
The sound I'm getting already sounds more like a pulsing output and less like a steady droning noise!
Here's a video of it where you can hear the sound. https://youtu.be/Mv8m_5eydJs
Can someone tell me if that's right? Or is my speaker connected wrong or malfunctioning?
(I did have a hard time connecting the wire to the speaker's terminals. I had to use alligator clips and I'm worried something might be touching the housing of the speaker)