I recently finished soldering up a lil sidrassi, old mister grassi and phosphate aluminum crystal simulator. One thing I noticed, all three of them make sound even when none of the nodes are being touched. I was able to find demos on youtube where it seems that the circuits only make noise when touched, but I was also able to find demos where they drone as they do in my builds. Anyone have an idea as to why this might be?
some things to note: The 1n914 diodes on my build are very small clear things with a bit of orange inside and black markings, I’ve seen builds where the diodes look like they are an opaque grey with black markings and are quite a bit larger. I built on pcbs and not paper.