[Elecraft] K2 initial impressions

[Don Wilhelm]

Jerry,

You will still want to remove the front panel to check the wiring of the 
microphone configuration header.
It must be wired to match your chosen microphone.

Since you did not build that K2, you may not know how to get to the 
Front Panel.
There are disassembly instructions at 
https://www.qsl.net/wy3a/Replace_K2_Headphone_Jack.htm.
Of course, you likely do not have to replace the headphone jack, but the 
disassembly instructions are the same.

73,
Don W3FPR

On 6/26/2021 8:39 AM, jerry wrote:
> Just for yuks, I opened it up to see....what if the SSB adapter had 
> been installed,
> and somebody pulled it out?
>
>    Sure enough, C167 was tacked messily to the top of the board. 
> According to the
> schematic, you remove that when you install the SSB adapter.
>
>   That's good news.  It means I just build the adapter, remove messily 
> tacked-on C167,
> plug the adapter in, and align.  Don't have to take the front panel 
> apart.
>
> ...or so I hope.
>
>                    - Jerry KF6VB
>
>
> On 2021-06-25 15:24, Don Wilhelm wrote:
>> Many filters constructed using the newer crystals do not have that
>> tilt, especially at narrow filter widths.
>> Wide filter widths do have both tilt and passband ripple.
>>
>> Having aligned almost 2000 K2s, I can say this with certainty.
>>
>> 73,
>> Don W3FPR
>>