Re: Why a Type K thermocouple?

So, kind of an old post...but i have been wondering why, in all the posts about thermal couples, people are using such complicated chips? Not that im against it, just wondering my not simply wire in a opamp circuit with a LM358 [NTE928M]? For example: [www.bristolwatch.com]

This could easily be tied into the Servo ports on a Ramps and added to a Reprap machine easily. Just a thought i've been having.

Thanks!
Cid