On Mon, 08 May 2006 22:56:58 -0400,
I have been looking for a digital thermometer and perhaps a timer,
with red LED displays (like the old MA1026 chip)
Everything is LCD these days. The only time I see somerthing with red
LEDs it is a bomb on a TV show.
Yes, it's a great loss. In laboratory environments, where you often want
to read numbers from a distance from wide angles and under various
lighting conditions, nothing beats red or green LED, 7-segment displays.
Amber fluorescent displays are good, too. LCDs, backlit or not, are
crap.
Blue LEDs are a real pest too. Some bright guy had the brillant idea to
install clocks with 4-inch, blue 7-segment displays (the segments made
of rows of LEDs) in a local railway station. Impossible to read. I've
got 20/20 sight (with glasses) and can't read the damn things unless I'm
about ten feet away. I guess the eye has only few blue-sensitive
receptors.
Shame also on the folks at Lakeshore who think that cryogenic equpiment
calls for blue fluorescent displays.
robert