[Elecraft] Need Mic adapter: Icom SM-50 to K3 mic input jack

[Pete Smith N4ZR]

Or... you can use the standard stereo mini plug which is usually 
supplied with condenser mikes and plug into the mic jack on the rear of 
the K3.  I use a Yamaha CM550 and it plugged directly into my K3 - just 
had to remember to enable bias on the rear mike jack.  I don't know 
which flavor of mic those two are, but page 28 of the K3 manual (and 
nowhere else I can find) explains what to do.

73, Pete N4ZR
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On 11/2/2021 5:32 PM, Don Wilhelm wrote:
> Bob,
>
> The Elecraft mic pinout is ALMOST the same as Kenwood's
> The Elecraft pin 6 carries +5 volts while for Kenwood, the +5 volts is 
> on pin 5.
> Pin 5 for Elecraft is the Function button.
>
> If your microphone does not require +5 volts and does not have buttons 
> other than PTT, then you only have to be concerned about pin 1 (AF), 
> pin 2 (PTT) and pins 7 and 8 (one for PTT return and the other for AF 
> return - both are connected together inside the K3).
>
> Icom and Yaesu are not as straightforward, see the G4WPW info at 
> https://www.qsl.net/g4wpw/date.html for details on the pinout for 
> those mics.
>
> If you can do a bit of soldering, you can make and adapter for the 
> price of a male and female Foster connector and a bit of wire.  If you 
> rewire the Foster connector on the mic, you don't need any adapter or 
> connectors at all, just a bit of solder, to unsolder the wires from 
> the existing connector and solder them in the correct pins for the K3.
>
> OTOH, if you wish to switch back and forth between the Icom/Yaesu 
> pinout and the Elecraft, the adapter or the MFJ box would be the best 
> choice.
>
> 73,
> Don W3FPR
>
> On 11/2/2021 4:34 PM, Gary Peterson wrote:
>> It appears that MFJ makes a box, designed to convert one brand’s mic 
>> connector to others.  It appears to be programmable, using jumpers.
>>
>> I believe the Foster connectors on the K3 or K3S are wired the same 
>> as Kenwood’s.
>>
>> The model number is MFJ 1263.  I have not used or seen one, so cannot 
>> comment on its utility.
>>
>> Gary
>> K0CX
>>
>>
>> I have no microphone for my K3. I am usually on CW or the digital modes.
>> Now I want to get on the KY Phone Net on 3838.
>>
>> So I talked DXEngineering and they know of no adapter plug/cable.
>>
>> So, I have an Icom SM-50 mic  and a Yaesu MD-100 mic.
>>
>> Anyone know of an adapter connector that would fit either to adapt 
>> them to the K3?
>> Or maybe a universal box that lets me plug all the mic's in and have 
>> a cable to the K3 ....
>> Also run an Icom IC-9700 FWIW.
>> Bob KD7YZ
>>
>
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