So I impulse-shopped again on eBay, which is always a dangerous thing. This time not so much. For just $6 plus shipping, I picked up an Elenco EP-130 “Electronic Playground & Learning Center.” Of course I would have rather had the 500-in-one kit, but that one goes for over $200, so I just can’t justify it.
I’ve always been somewhat ashamed of my lack of intimate electronics knowledge. I know a little about a lot of things, and a lot about a few things. I’ve just never given actual electronic components the proper level of devotion and practical learning time.
So I started today. Experiment #1: Woodpecker. Two resistors, three capacitors, a transistor and a transformer make the speaker emit chirping sounds. Whoopee. Changing the capacitors, resistors or voltage changes aspects of the chirping sounds.