[Elecraft] Looking for Heil Proset cable adapter for K2

[Don Wilhelm]

Ted,

Which Heil Proset do you have?  In other words, does it need bias or 
not?  If it needs bias, then it is either the Proset-K2 or the 
Proset-iC.  The K2 or iC designation is normally found at the base of 
the headset arm.

If it is the K2 or iC version, then you should configure the K2 
microphone configuration header for Elecraft including the bias resistor 
on the back of the microphone jack.
If it is any other, it has a dynamic microphone and you should leave the 
bias resistor off.

As for the Adapter, use the one for Kenwood (red band) and all will be 
well with either the electret mic Proset or the dynamic mic variety.  It 
is the AD-1-K.
Elecraft may have them available, but you can also buy one from Heil or 
any of their distributors.

73,
Don W3FPR

On 11/20/2017 11:47 AM, Dauer, Edward wrote:
> I have a Heil Proset that I bought for use with my KX3.  Now that I have a K2 with the SSB option I would like to use the same headset with that rig.  The Proset has a 3.5 mm TRS plug.  The K2 requires the usual 8-pin microphone attachment.  Elecraft’s Order page says that an adapter comes with the Proset, but I can’t find one here – even assuming it was supplied when I bought the headset years ago.  Anyone have an adapter for this purpose that they would sell?  I have written to Sales at Elecraft but haven’t heard back yet.