These thermistors work very well.
@textile, I've been meaning to thank you for finding these. I have them installed in a couple projects now, and I'm very pleased with them. Also, at 3 for $1, you can't beat the price!
Also, everyone, I can confirm that 2SC2259 is a viable alternative to 2SC1583. I've tested one in the VCO of my experimental x0x build, and the traces off the VCO on my oscilloscope were indistinguishable. I have yet to test in the filter, where it may actually change things a bit, as the C2259 basically IS a C1583, but with a much wider and higher range of Hfe values.
Don Taylor, a.k.a. Brassteacher
"Jack of all trades, master of none, proficient at even fewer..."