I purchased a cable with the 4 pin XLR connector on one end (forgot what was on the other) from eBay. I believed I paid US$12 shipped. The cable was cut to about 2 ft, and I put the appropriate phone plug on the cut end. My Heil HM10 now is connected to the rear input of my K3, a much neater installation in my very small, cramped shack.
The connector quality was marginal, not up to Heil standards, but fine for my static installation. I had to re-do the cable wires to the XLR connector, as two were crimped and two were soldered.
The solution works fine, and was significantly cheaper than buying a professional quality XLR connector, the only type I could locate, and finding a short length of decent mic cable. Search on '4 pin xlr' on eBay. If you do want a high quality connector, try searching music and recording equipment sites.
Randy Cook K6CRC
K3 #2051
[hidden email]
>
> Message: 17
> Date: Fri, 2 Jul 2010 16:01:29 -0700
> From: Brett Howard <
[hidden email]>
> Subject: [Elecraft] Heil 4-pin XLR pinout
>
>
> So I've done a few searches and I'm finding all sorts of people
> wanting to sell me an adapter cable... But what I'm trying to find
> online is a place that gives the pinout for Heil's 4-pin XLR mic's...
>
> I'm also trying to find a local source for the connector and seem to
> be striking out so if anyone knows a good place to procure said
> connector I'd appreciate that too..
>
> I've already got a Kenwood adapter cable and I'm hoping to not destroy
> that cable yet make another cable that will allow me to run the mic
> into the back...
>
> ~Brett (N7MG)
>
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