[Elecraft] K2 Control Board - Build Question - R18/R19 jumpers

[Don Wilhelm]

John,

Look at the wires as 'zero ohm' resistors - which is what they really are.
Yes, install one between J1 pin 1 and J2 pin 1 - and another between J1 
pin 2 and J2 pin 2.

If you install J1 and J2 later (to add either the KAF2 or KDSP2), you 
will remove these 'zero ohm resistors' - so install them in a manner 
that would be easiest to remove later.

If you have the KDSP2 or KAF2 kit in hand right now, dig into the kit 
for the J1 and J2 headers and install them now (do not solder in the 
'zero ohm resistors') - then bend 2 component leads to connect J1 pin 1 
to J2 pin 1 and also J1 pin 2 to J2 pin 2 - stick the jumper wires into 
the headers.  Remove the jumpers when you are ready to install the KAF2 
or KDSP2.

73,
Don W3FPR

73,
Don W3FPR

John Hoaglun wrote:
> Hello Builders,
>
> I am working through the steps for the K2 control board. I am at the 
> point where I am getting ready to install R18 and R19 on the bottom of 
> the Control Board. I am not 100% clear on "Install short wire jumpers 
> at R18 and R19..... on the top side of the board."
>
> I realize that these pins are shared with J1 and J2.
>
> 1. Am I supposed to have short wires in the each of the pins but not 
> connected to anything else?
> 2. Am I supposed to short/jump J1/1 to J2/1.... J1/2 to J2/2
> 3. Am I supposed to short/jump J1/1 to J1/2.... J2/1 to J2/2
> 4. Something else completely different?
>
> Does anyone have any pictures and/or can you explain this to me?
>
> Thanks, JH
>