[Elecraft] D 104

[Don Wilhelm]

  Charlie,

It is difficult to answer from only the wire colors without any 
diagram.  Those colors in the cable can mean most anything - except the 
shield is ground.

According to the Astatic .pdf in G4WPW's extensive list of microphones, 
the wire colors are: White (audio), Shield (AF Ground), Blue (switch 
common), Red (PTT), Black (RX Control - no use for most transceivers), 
Yellow (Receive Ground - seldom used).  These colors are for the wires 
inside the stand - take the bottom cover off to see them.  Then you 
could determine which of those wires connect to which color in the 
cable.  Use your head and your ohmmeter to be certain.  Someone may have 
rewired it according to their own definitions of which color is what.  
Those mic stands may have been through a lot of hams hands.

Work with the colors in the stand rather than the ones in the mic cable.

One thing you could do is to confirm the two that are used for the PTT 
switch - connect two of the wires to your ohmmeter and close the PTT - 
the two that show continuity when the switch is closed are for PTT  - if 
one of those is blue, that goes to pin 7 or 8 of the mic plug, the other 
is the PTT  line.

Examine the wires more carefully to see if one is a shielded wire - that 
would be th AF and its return would be the shield.

The AF connection is to pin 1 and the PTT connects to pin 2 - the 
returns connect to pins 7 and 8.

73,
Don W3FPR

On 6/9/2011 2:25 PM, CHARLES WHITE wrote:
> And now I have another problem of how do you connect the 8pin to the 4 wires from the D 104?
> There is a schematic on the inside of the mike bottom plate but does not address the from 4 to 8 pins.
> There are 4 wires in the mike cord; a black, a red, white, and copper for ground.
>
> I assume the black and red are for the mike and the white for PPT.
>
>
> Charlie White
> K6TBB
> San Diego
>