[Elecraft] Older K3/100s can be updated to avoid possible "ERR12V" problem

[Stewart]

Thanks Wayne,
Does the field modification also include changing pins on the KPA3
PCB, as mine are tin plated ?

73
Stewart G3RXQ
On Tue, 14 Feb 2012 09:21:31 -0800, Wayne Burdick wrote:
> Both the production change and the field modification result in gold-
> to-gold contacts throughout the 12 V circuit to the PA.
>
> Wayne
> N6KR
>
> On Feb 14, 2012, at 9:12 AM, Stewart wrote:
>
>> I had a look inside my K3 today. Although it is an early one, S/N 307
>> it has a new RF board with gold pins.However, these mate with the
>> KPA103
>> Interface Module which has sockets that are tinned.
>>
>> I thought that there was a danger that over a period of time the tin
>> would
>> migrate onto the gold surface and cause oxide issues.
>>
>> Shouldn't it be gold to gold, and tin to tin ?