[Elecraft] K-2 Blue Display

[Ron D'Eau Claire]

Personally, I'd not want to change the amber color of the LCD in either of
my rigs. I feel there's an excellent reason for that. 

Blue light provides the greatest visual acuity. That's why sunlight, which
is very blue, is so good for detail work and why my work table lights are
5800K (sunlight color temperature). That makes it good for situations where
we want data at a glance but don't look at the display very long. 

OTOH, light with a lot of blue is very tiring over time. 

Red light provides the least visual acuity. Our eyes simply don't see detail
well at that part of the spectrum. It's also the color light that is the
most relaxing (which is why candle light and fire light is desired for
romance). 

Amber seems to me an excellent compromise: easy to see the characters but
not nearly so stressful over time as colors nearer the blue end of the
spectrum. 

If I were to consider some activity that had me in front of my rig for long
hours at a time, such as contesting, I'd definitely avoid blue. Even as a
"casual" operator, I appreciate the soft glow of the amber display.

Ron AC7AC

-----Original Message-----

I understand the desire to have a blue backlight for any LCD.  They're very
popular in many devices.  Most of these I see, such as my NUE-PSK modem,
have white characters against their blue backlights.  Wouldn't the K3's LCD
remain black when converting the backlight to blue?  It would seem a little
more difficult to read a black character on a blue background.  How would
one go about also converting the K3's LCD characters to white?
It seems like it would be a cool project, but would it be worth the time,
effort and expense?  Perhaps for some.
Just my US$0.02...

----------------------------
I would be interested in converting the display in my K-2 to the now
popular blue display available in many radios, including the vintage
Drake line as well as some of the modern transceivers. Anyone try this
yet? Where did you find the parts? Many thanks, and I enjoy reading the
helpful posts on the Reflector. KM4VX
Ron Cerra

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