Thanks Dan (from one USAF VN era vet, to another), I found Jim Weir's stuff
at:
http://www.rst-engr.com/kitplanes/ .. but unfortunately none on CHT/EGT
gauges. Did I miss one? If you have a link, please post. Thanks, -Phil K.

"Dan, U.S. Air Force, retired" wrote in message
news:igtke.34819$aB.17488@lakeread03...
Phil in Indy wrote:
Hi all. I have been lurking for some time [snip] I want
two CHT and EGT gauges. [snip] I would not be surprised to find that
someone has
developed an LED indicator as a low-cost alternative to the common
mechanical dial or expensive EIS systems for the CHT and EGT gauges. I
was
imagining a 3-LED system: Yellow LED = warm-up. Green = within limits.
Green/Red = nearing upper limit, head back to field. Red = throttle
back
and coast, or if safe, cut engine and land now. Does anyone know if
something like this exists? I have googled my fingers raw, but to no
avail.
If I could find specs on the thermocouple senders, I could just about
design
the display myself. Any advise would be hugely appreciated. TIA, Phil
in
Indy.


Jim Weir did a series on warning lights using LEDs in Kitplanes 7 or 8
years ago. If all you want is idiot lights you should be able to use his
idea with slight modifications.

Dan, U.S. Air Force, retired