[Elecraft] TRS connectors - Heil Foster adapter

[hawley, charles j jr]

Right! I did end up buying a couple of Heil "Replacement" Foster 8 pin Plugs from DX Engineering. They, by the way, are excellent plugs. Much higher quality than the run of the mill that one finds at hamfests. And I made my own adapter.

Chuck KE9UW
c-hawley at illinois.edu

Sent from my iPad

> On Feb 12, 2019, at 9:43 AM, Don Wilhelm <donwilh at embarqmail.com> wrote:
> 
> Chuck,
> 
> The solution is easy (in my mind).  Just plug the TRS plug into the K3/K3S rear panel mic jack.  That jack is a stereo type, but the ring is not connected to anything.  No adapter required.
> 
> If you want to use the front panel 8 pin Foster jack, you will have to build you own adapter.
> 
> All microphones that are designed for computer (gaming) use have a TRS plug - but the tip and ring are wired together.  That includes the much used CM500 headset and many others.  Yes, when used with Heil adapters, they will not work because the ring is shorted to the shell.  The Heil adapters are designed for mono plugs normally used on the Heil headsets.
> 
> 73,
> Don W3FPR
> 
>> On 2/12/2019 9:41 AM, hawley, charles j jr wrote:
>> I investigated the Heil Foster adapter and the shorted ring-sleeve is inside the 1/8 inch phono jack. Not in the easily fixed Foster plug. So it cannot be fixed...reasonably. Why short it making the adapter unusable for the excellent and reasonably priced gamer headsets?