[Elecraft] K3 - Rear panel mike socket; stereo or mono?

[David Ferrington, M0XDF]

The jack is a mono jack on the K2 proset from Elecraft, yet it  
requires bias (rP.L bias).
I believe the socket is a mono socket also.
73 de M0XDF, K3 #174
I am told I talk in shorthand and then smudge it. - J.R.R. Tolkien  
(1892 - 1973)

On 1 Sep 2008, at 12:34, n4lq wrote:

> Normally a computer mic. has a condenser element and requires DC  
> bias via the mic. jack. Don't use a mono adapter. Set your menu for  
> rPH bias. The 'mono' label is tricky. I think it means that the mic.  
> audio is mono but not the jack.
> Steve Ellington
> N4LQ at insightbb.com
> ----- Original Message ----- From: "stewart rolfe" <gw0etf at btinternet.com 
> >
> To: <elecraft at mailman.qth.net>
> Sent: Monday, September 01, 2008 4:26 AM
> Subject: [Elecraft] K3 - Rear panel mike socket; stereo or mono?
>
>
>> Been trying out a pc type headset with boom mike and a
>> 3.5mm stereo plug on the mike lead. Having what I like
>> to think of as a logical mind(?), I made up a 3.5mm
>> stereo to mono adapter to plug into the socket on the
>> rear of the K3 which is labeled 'mono'. This 'sort of'
>> worked but kept losing the connection intermittently.
>> The adapter plug did seem to be a bit of a loose fit
>> which caused me have a closer look at the KIO3
>> analogue board and I noticed that the mono mike socket
>> appeared to be a stereo type with presumably, just the
>> tip connected.
>>
>> Anyhow I just plugged the stereo plug from the boom
>> mike straight into the 'mono' socket and it works
>> fine, better fit too. Can't find any mention of this
>> in the manual so wondering if the use of a stereo plug
>> is the recommended way...?
>>