I've picked up some stuff from a chap who used to repair TVs and among it were these three items (I've got a few of each one). The last items are thermistors I believe, but any further information about what their properties might be would be welcome (the little one has one red and one green dot painted on). The first item consists of a small metal can with a red insulator in one end and a single splash of green paint on the side. The second item looks like a shaped nylon shaft with an adjusting screw slot in one end, a steel (?) sleeve and a bulge on the other end. The ruler scale is in cm.
Thanks,
VB