Everyone should be familiar with standard carbon through-hole resistors, but there are of course other types like wirewound, metal film, metal oxide, etc.
The trouble is, how do you identify the type of resistor if you just have a bunch sitting in a parts bin?
I inherited a grab-bag of parts and haven't been able to identify some components. Here is a sample of the resistor-like parts:
The topmost part is a standard 1/4W carbon resistor. Below that, I believe a metal film or metal oxide. Below that, I am simply not sure. (I think the last part may even be an inductor.)
Is there a standard color coding for these parts to identify the component and its composition?