[Elecraft] K3 8 pin mic wiring to avoid "pin 1" problems...how best to...??

[Don Wilhelm]

  The "pin 1" problem is not a function of the cable wiring, but of the 
equipment that it plugs to.
To avoid a pin 1 problem, the shield path for the connector should be 
connected to the equipment enclosure.  That was easy when we had 
connectors that mounted on the enclosure, but becomes difficult without 
extra measures if the connector is mounted to a PC board instead of to 
the enclosure.

Connect the PTT return and the AF return (mic shield) to pins 7 and 8, 
and if there is an overall cable shield, it would best be connected to 
the shell of the mic plug.
That is about all you can do.

73,
Don W3FPR


On 6/2/2011 9:04 AM, VK7JB wrote:
> Hello Group,
>
> I'm rewiring an 8 pin mic connector FROM an Icom configuration TO a  K3
> pinout.
>
> Wiring the Mic + and PTT lines is straight forward.  But how best to wire
> the PTT GND,  Mic - and Cable shield connections is bothering me.
>