[Elecraft] K1 illumination

Tue May 14 22:06:01 2002

Well, youse guys made me do it.

I put a 1900mcd yellow LED (Radio Shack) in each corner of the display.
Behind the front panel, tho, I taped a piece of white paper with a hole for
the display so a bunch of the light could get reflected off the front.  I
also made some baffles to keep the light from being quite so obvious around
the buttons.

Actually, works pretty well.  Not like an actual backlight, but plenty of
illumination to see the display, and with the paper in there, it appears to
come from all around the display.

72/73 de WB8RCR    http://www.qsl.net/wb8rcr
didileydadidah     QRP-L #1446 Code Warriors #35

----- Original Message -----
From: "lhlousek" <[email protected]>
To: <[email protected]>
Sent: Tuesday, May 14, 2002 4:28 PM
Subject: [Elecraft] K1 illumination

> I put 2 small high brightness green LEDs in series and mounted one on each
side of the LCD angled so as to illuminate
> the LCD.  Plenty of light at 10 mA but illuminating the LCD from the edges
doesn't work very well.  The LCD looks washed
> out and most of the light winds up illuminting the inside of the K1. I
took them out and use an external LED light to
> illuminate the display, and the buttons and even my note pad.  It only
takes about 10mA to provide adequate light if
> your eyes are dark adapted.  Of course they won't be if you have the ATTN
or RIT LEDs on. HI!
>
> Lou W7DZN
>
>
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