K2 Af Gain potmeter

[Jos Weitenberg]

I build my K2 in the winter 2018/2019 with serialnumber 7850.
The transceiver works very well, but the af gain potmeter sound scratchy now.
My question is, is this normal after such a short time of use ?

Where can I get a decent potentiometer, because if I replace it with the same one, I think I will have the same problem again in 2 years.


73’s Jos PA3HGX
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[Don Wilhelm]

Jos,

If you can find another control with the same shaft length and
footprint, You can use it.

I suspect that you had a defective one - after the AF Gain Wiring was
changed (and incorporated onto the boards after SN 3000) the number of
AF Gain potentiometers that became scratchy dropped to almost nothing.

I recommend just getting another from Elecraft.

73,
Don W3FPR

On 7/12/2020 4:44 AM, Jos Weitenberg wrote:
> I build my K2 in the winter 2018/2019 with serialnumber 7850.
> The transceiver works very well, but the af gain potmeter sound scratchy now.
> My question is, is this normal after such a short time of use ?
>
> Where can I get a decent potentiometer, because if I replace it with the same one, I think I will have the same problem again in 2 years.
>
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[Dave Van Wallaghen-2]

Hi Jo's,

As Don stated, it is probably a bad pot which are pretty far and few
between since the AF gain mod years ago. You can simply order another one
from Elecraft here: https://elecraft.com/pages/parts-mod-kits

The Elecraft part number is E520003. Hope this helps.

73,
Dave, W8FGU
On July 12, 2020 12:30:47 Don Wilhelm <[hidden email]> wrote:

> Jos,
>
> If you can find another control with the same shaft length and
> footprint, You can use it.
>
> I suspect that you had a defective one - after the AF Gain Wiring was
> changed (and incorporated onto the boards after SN 3000) the number of
> AF Gain potentiometers that became scratchy dropped to almost nothing.
>
> I recommend just getting another from Elecraft.
>
> 73,
> Don W3FPR
>
> On 7/12/2020 4:44 AM, Jos Weitenberg wrote:
>> I build my K2 in the winter 2018/2019 with serialnumber 7850.
>> The transceiver works very well, but the af gain potmeter sound scratchy now.
>> My question is, is this normal after such a short time of use ?
>>
>> Where can I get a decent potentiometer, because if I replace it with the
>> same one, I think I will have the same problem again in 2 years.
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]

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