Homebrew PCBs

Hi,

 

Long ago (20-plus years), when I worked in aerospace, we had little
paper strips that we attached inside a unit to find out how hot it got
during test. As I recall, they had dots which permanently changed color
at different temperatures. Google couldn't find them but maybe I didn't
ask it the right question. Has anyone else heard of these? Are they
still made? It seems they would be perfect for measuring roller
temperature. 

 

Jim

 

From: Homebrew_PCBs@yahoogroups.com
[mailto:Homebrew_PCBs@yahoogroups.com] On Behalf Of DJ Delorie
Sent: Thursday, February 11, 2010 7:45 AM
To: Homebrew_PCBs@yahoogroups.com
Subject: Re: [Homebrew_PCBs] Re: laminator heat specs

 

  


Try opening it up and looking at the part numbers. The roller temp
isn't always the same temp as the cutoff unless you can measure it
*between* the rollers.





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