[Elecraft] KX1 Rotary Encoder spare

Sat Apr 4 19:58:37 EDT 2026

My order came in today. The encoders on my KX1 working fine so these 
just went into my spares for my KX1. de w7sua

On 4/3/2026 11:51 AM, Paul Jewell via Elecraft wrote:
> Well, Digikey didn't hang around with their shipping - I received the 
> new part a few days ago, and this afternoon I removed the old one and 
> fitted the new one. Everything is now working as expected. First test of 
> the radio: I called CQ on 20m, and was picked up in Sicily - not bad for 
> 2.5w from North Wales!
> 
> Thanks to Dave and everyone else for their comments and advice.
> 
> 73,
> Paul,
> MW7PAJ
> 
> On 25/03/2026 19:09, Paul Jewell via Elecraft wrote:
>> Thanks Dave - I have placed the order, and according to DigiKey they 
>> should be here within the week.
>>
>> 73,
>> Paul
>> MW7PAJ
>>
>> On 25/03/2026 18:59, Dave Van Wallaghen wrote:
>>> Yeah Paul, I'm not really sure why the manual states that. This is an 
>>> 18 PPR version. I got that part number from the bill of material 
>>> database at Elecraft. Since I am offsite, I just wanted to get my own 
>>> order since I replace a number of them throughout the year.
>>>
>>> 73,
>>> Dave, W8FGU
>>>
>>>
>>>
>>> On 3/25/2026 2:52:29 PM, "Paul Jewell" <paul at teulu.org> wrote:
>>>
>>>> Hi Dave,
>>>>
>>>> Many thanks for this information. Looking at the part number, it 
>>>> looks like I can get it from DigiKey here in the UK. The only query 
>>>> I have is regarding the pulses per revolution rating. The Elecraft 
>>>> handbook for the KX1 indicates 80 PPR, but all the examples, 
>>>> including the one you are using are 30 PPR or less. I guess this 
>>>> still works, but needs more rotation of the dial for the same 
>>>> movement? As you have been using this DigiKey part, I assume there 
>>>> is no issue with this, and I will go ahead with ordering. Perhaps I 
>>>> am reading the handbook incorrectly!
>>>>
>>>> Thanks also to Jack and William for their replies and feedback - it 
>>>> is much appreciated!
>>>>
>>>> 73,
>>>> Paul
>>>> MW7PAJ
>>>>
>>>> On 25/03/2026 15:47, Dave Van Wallaghen wrote:
>>>>> Hi Paul,
>>>>>
>>>>> I do the service for the KX1 through my company W8FGU Services, LLC 
>>>>> and for Elecraft. I found a good supply of those through DigiKey. 
>>>>> Their part number is PEC11R-4015F-S0018. It is an exact match and 
>>>>> I've been using them for a couple of years now. Hopefully you can 
>>>>> source one over there. If not, it is our part number E640018.
>>>>>
>>>>> 73,
>>>>> Dave, W8FGU
>>>>>
>>>>>
>>>>>
>>>>> On 3/25/2026 11:19:13 AM, "Jack Brindle via Elecraft" 
>>>>> <elecraft at mailman.qth.net> wrote:
>>>>>
>>>>>> Paul;
>>>>>> Contact tech support. The same part was used in the K3 for the 
>>>>>> four controls just to the left of the big knob. The original part 
>>>>>> was from CUI Stack, part number AEC11BR4E-15FD1. That appears to 
>>>>>> no longer be available, and CUI Stack has renamed themselves as 
>>>>>> SameSky. There _may_ be a part available from both Digikey and 
>>>>>> Mouser with part number ACZ11BR4E-15FD1-20C. The _may_ is critical 
>>>>>> here - be sure to take a really goo look at this part before 
>>>>>> ordering it. There may be difference (including how it mounts) 
>>>>>> that will make if difficult to use in place of the original.
>>>>>> Again, talk to Elecraft tech support. They may have a better 
>>>>>> solution.
>>>>>> As always, please let us know what you find.
>>>>>> 73,
>>>>>> Jack, W6FB
>>>>>>> On Mar 25, 2026, at 7:59 AM, Paul Jewell via Elecraft < 
>>>>>>> elecraft at mailman.qth.net> wrote:
>>>>>>> Good afternoon all,
>>>>>>> I am looking for a spare rotary encoder for my KX1 - the existing 
>>>>>>> unit is now erratic, and ready for replacement.
>>>>>>> I am in the UK, but have friends in Europe if that is easier. I 
>>>>>>> have also written to Lutz, in case they have spares but I am 
>>>>>>> covering all my bases.
>>>>>>> Do any of you have a spare you are prepared to sell, or do you 
>>>>>>> know the OEM part number (rather than the Elecraft one)? It seems 
>>>>>>> 80 PPR encoders are not common.
>>>>>>> I believe it is possible to split the housing and clean it, but 
>>>>>>> looking at it, I don't think that would be easy!
>>>>>>> Many thanks!
>>>>>>> 73,
>>>>>>> Paul
>>>>>>> MW7PAJ
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