[Elecraft] KX1 Rotary Encoder spare

[Paul Jewell]

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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