Homebrew PCBs

I used to have one. I remember 2 digits showing but if you knew how you could accurately read it.as I recall it was green when it was exactly that temperature and would turn more brownish below that temperature,above that temperature it was more bluish.by which numbers were lit you could figure out within about a degree what the temperature was. 

 

Also had a replica of a galileo thermometer with the floating spheres inside, this wasn’t very accurate the lcd was much closer.

 

 

From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com] 
Sent: Saturday, August 26, 2017 10:43 PM
To: Homebrew_PCBs@yahoogroups.com
Subject: [Homebrew_PCBs] Re: Chemical question

 

  

Probably a liquid crystal thermometer - they were sort of popular a few years ago, I haven't seen one in a while. From what I remember, their main problem was that they didn't jump discretely from one temperature reading to another - there were usually 2 different numbers showing at the same time.

 

 < https://en.wikipedia.org/wiki/Liquid_crystal_thermometer >

 

Roy