[Elecraft] Microphone Qusestion

[Joe Subich, W4TV]

Assuming there has been no change from the late K3, pins 7 and 8 are
both connected to circuit board common.  Since the K3/K3S front panel
mic jack is generally compatible with Kenwood (except for the reversal
of pins 5 and 6), most folks treat pin 7 as mic return and pin 8 as
shell/ground/chassis.

73,

    ... Joe, W4TV


On 2015-07-06 4:20 PM, Bob McGraw - K4TAX wrote:
>
> While I don't have my new K3S radio yet, I did print the Owners Manual.
> It shows the MIC audio connection to be pin #1 as MIC audio, pin #7 as
> GRD, and pin #8 as GRD.  My question, are pins #7 & #8  the same or is
> one analog ground and one chassis. ground. If so, which is analog ground
> and which is chassis ground?   I'm making a mike cable XLR to 8 pin.
>
>
> 73 Bob, K4TAX
>
>
> On 7/5/2015 11:49 AM, Jim Brown wrote:
>> On Sun,7/5/2015 7:06 AM, Joe Subich, W4TV wrote:
>>> The Heil PR-781 is grossly overpriced. Any quality dynamic mic will
>>> work very well with the K3/K3S.
>>
>> Right on both counts. Because I'm retired from pro audio, I have a
>> closet full of pro mics. All of the dynamic mics work very well with
>> the K3. Before one of the guys in our club introduced me to the CM500,
>> I used an RE11 on a boom stand from my music recording stash. I also
>> own two Sony MDR7506 headsets, which I no longer use in the shack
>> because the CM500 is so good.
>>
>> The TX EQ built into the K3 is quite capable, and is all that is
>> needed to tailor TX audio to a mic and a voice. An external equalizer
>> is a waste of money. All it takes to use any dynamic mic with a K3 or
>> K3S is a suitably wired connector or connector adapter cable. For a
>> pro mic with an XL-connector, wire pin 2 to the mic input, pin 3 to
>> mic return, and pin 1 to the connector shell. Or if you have a two
>> wire cable (center plus shield), wire pin 2 to the center conductor
>> and to mic input, tie 1 and 3 together to the shield, and connect to
>> the K3 connector shell.
>>
>> 73, Jim K9YC
>>
>>
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>
>
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