[Elecraft] K1 retrofit backlight mod

[David Gilbert]

Before a backlight kit was ever available for the K1 from Elecraft, I 
built my own and was able to position it at the side of the LCD without 
tearing everything apart.  I used a single white LED, and if I remember 
correctly I filed the face of the LED plastic body to make the light 
scatter better.  I used a FET connected as a series current limiter to 
give a few milliamps of current, and picked up a switched 12 volt from 
somewhere on the circuit board.  It works fine.

Dave   AB7E



On 7/6/2019 3:53 PM, Don Wilhelm wrote:
> Lloyd,
>
> The kit for built K1s included the LCD p/n E600015, for unbuilt K1s it 
> was not included.
>
> In order to install the backlight the LCD must be removed and will 
> most likely be destroyed in the process.  The easiest way to remove it 
> is to cut the pins close to the LCD body and then remove them one at a 
> time.
>
> Before doing anything, check with the Elecraft sales office to be 
> certain both the p/n E600015 and the backlight kit for an unbuilt K1 
> are available.
>
> 73,
> Don W3FPR
>
> On 7/6/2019 4:34 PM, LL wrote:
>> The backlight mod on the Elecraft site says that it's for unbuilt 
>> kits. Can
>> it be added to a built kit? If not, is there a mod for that, 
>> somewhere...?
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