[Elecraft] K2 backlighting brightness

[ron_w]

Hi,
      I originally built my K2 #2204 about 5 years back, and have had a 
ball with it, bringing it up to date with all the latest mods and small 
alterations, but, like others on the reflector here, I was finally bitten 
by the " build another kit" bug and consequently built myself another K2 #5577.
Both K2's go remarkably the same, but the older K2 has a noticeably dimmer 
display than the new one which raises the questions :-
(1) Do the back light LED's dim with time?  ......the older K2 *has* had a 
lot of use.
(2) Would changing R10 to (say) 22ohms have any detrimental effect  on the 
life of the back light LCD's?
I'm not worried about current increase (I use a 40 amp supply) but would 
such a change give me more back light without compromising components in 
the Front panel board?(ie U3). I doubt there is a problem but it is always 
wise to ask ..........
Cheers.......Ron ZL1TW
  


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