Identifying tempcos

[Doug Tymofichuk]

Hello everyone,

With all this talk about tempcos, I am wondering if I might 
encounter some when salvaging equipment. As I have never 
actually seen one, I wonder if there is any way to 
physically identify them. Do they have any unique markings 
or anything to show what they are? Or do they just look 
like any other resistor?

Thanks in advance for any information!
----------------------
Doug Tymofichuk
dougt at cancerboard.ab.ca