[Elecraft] K2 Diffuser Again

AJSOENKE at aol.com AJSOENKE at aol.com
Sun Jan 20 16:34:55 EST 2008


In a message dated 1/20/2008 10:07:21 A.M.  Pacific Standard Time, 
tony.parker at comcast.net writes:
The build of K2 #6358  has hit a road block!

I have a couple of questions concerning the  backlight/diffuser:

1.  The leads are too short.  About a week  ago Gerard, PA3GP, proposed
extending  the leads by soldering short extensions.  He got  no
responses so I assume this is a safe  way to proceed.

2.  The diffuser has what I assume are polarity  markings.  Each LED has
the leads  marked with 'A' and 'K' and the board has a '+'   
indicated
for each  diode.   Can I assume that the 'K' is the '+',  or do  
I  not  care?


Thanks!

Tony
ke6g
_______________________________________________

1.  I agree, but they did fit without modifying the process on #6281,  but 
definitely shorter than #4887.
 
2. You do not care, as far as K2. 'K' has always meant Cathode (-) to avoid  
confusion with 'C'  for Capacitance? or maybe because of the German  language 
origins.  In any even the device is symmetrical and cannot be  installed 
incorrectly from the front side.
 
My students, 10-12th grade had a little trouble figuring the plastic  
diffusion screen until they read the FAQs on it. We have the front panel done,  the 
KAT2 KIO2 done and will start the RF Board as soon as the control board  (1/2 
done) is complete.  
 
73,  Al WA6VNN



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