I did a backlight on my K1 ~20 years ago that worked out well. The key was 
getting a transreflective LCD panel so the light would show through. The 
original panel was opaque.  Here's a couple of pix:

https://www.dropbox.com/s/pu01s46xylba2se/100_0047.JPG?dl=0 
https://www.dropbox.com/s/6u7ggpfl65p9l4w/K1%20LCD%20LED%20sm.JPG?dl=0
Lou W7HV

    On Saturday, December 4, 2021, 09:00:13 AM MST, Don Wilhelm 
<[email protected]> wrote:  
 
 Ken,

The K1 LCD backlight is no longer possible.  The original used half of 
the K2 backlight strip which is no longer available and the new K2 strip 
is too thick to fit under the K1 LCD.

73,
Don W3FPR

On 12/3/2021 11:39 PM, Ken Brown wrote:
>  Need the best modifications for back lighting of the K1.
> This version never had the K1 LCD Backlight Kit.
>
> Ken
> Elecraft K1 nr. 260
>

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