[AMRadio] D-104 wiring

[Geoff]

Uhm... check the bottom of the stand. If there's a pot, then its an amplified D-104.  That's the only reason I can see for a mic cable having 5 leads. 

W5AMI <ars.w5ami at gmail.com> wrote:

>On Fri, Jun 8, 2012 at 9:32 AM, John Coleman <jc at pctechref.com> wrote:
>
>> Without tracing the wire inside the microphone, a quick way is to use and
>> passive ohm meter that uses a 1.5 volt battery (do not use higher voltage
>> ohm meters for this test) on the x1 or x10. When you connect it to the
>> shield and the proper wire you should hear a click coming from the D104
>> cartridge. Once when you connect and again when you disconnect.  If the
>> microphone has push to talk you will probably need to lock the button down
>> for this test.
>> John, WA5BXO
>>
>>
>I would venture to say the white wire is the audio line.  That would go to
>the center of the jack.  Of course shield is ground to the case of the mic,
>and I would tie black to it.  If I remember right, black is a direct ground
>(-) side of the mic element, or just for the key circuit of the mic.
> Either way, I think you could tie black to the shield.
>
>I would also suspect RED is the key line, but unless you have PTT wired up
>in the rig, it's useless for now.  Have no idea what blue would be.  It's
>been a while since I've used a D-104.
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