[Elecraft] K2 encoder installation 2018

[Don Wilhelm]

Ted,

I am afraid you have ruined the front panel metalwork.
The best solution is to purchase new Front Panel metalwork.  Enlarge the 
hole for the threaded part of the encoder just a bit.  I use a thin 
knife blade and 3 or 4 passes with it inside the encoder hole will do 
the job nicely.

The other way (not as nice) is to take the encoder to a nearby hardware 
store and find a washer that has a hole large enough to pass the ring at 
the base of the threaded portion of the shaft, and use that as a spacer 
behind the front panel metal.

In either case, you will have to tighten the lockwasher and nut enough 
so the encoder will not twist on the front panel.

You must have 3 felt washers under the knob.  Two were packed with your 
encoder assembly and a 3rd one was packed with the Front Panel parts bag.

Flush trim (diagonal cutters are not good enough) the leads on both the 
encoder board and also the back of the control board in the area which 
might contact the encoder board.

The two rubber pads must be placed at the top of the front panel board 
(on the solder side).

If the encoder board can still contact the control board, cut a piece of 
card stock (a piece of a QSL card will do) and place it between the 
encoder board and the control panel.

73,
Don W3FPR

On 9/2/2018 7:30 AM, Ted Salmon wrote:
> The encoder plus attached PC board is attached to the Front Panel with a lock
> washer and 1/2" hex nut on the encoder shaft. The diameter of the hole on my
> Front Panel was 10 mm as measured with my calipers. The diameter of the
> threaded mount on the encoder is ~ 9 mm while the diameter of the ring at
> the base of the threaded mount is ~ 10 mm. How is the encoder correctly
> mounted by hardware to the inside face of the Front Panel?
> 
> I tried 3 methods without success.
>