Re: Proper Heil Adapter for K3?

[fserota]

I have Heil adapters with a blue band at the "Y" junction and with a
red/orange band. I thought the red banded one was correct for the K3 but
doesn't work for me at any bias setting (Using a proset headset or PR781
microphone.  Any ideas? The MH1 works fine.

 

Fred, K3BHX

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[Don Wilhelm-4]

Fred,

The red adapter is the correct one, but depending on your Proset, it may
or may not need bias.  If it is the Proset-iC or the Proset-K2, it will
need bias, but if it is any other, bias should not be applied (adding
bias may saturate the microphone element and cause its output to be zero).

Please understand which microphone element you have and apply bias or
not apply bias accordingly.
A Heil microphone is not necessarily a Heil microphone, there are many
models and you must be specific about wihic one you have if we are to
offer good advice as opposed to "guesses".

BTW - what are you referring to as the "Y" junction?  I can guess that
it might be the PTT jack on the Heil adapter, but please be specific so
we do not have to make assumptions.

73,
Don W3FPR

On 2/25/2012 7:53 PM, Fredric Serota wrote:

> I have Heil adapters with a blue band at the "Y" junction and with a
> red/orange band. I thought the red banded one was correct for the K3 but
> doesn't work for me at any bias setting (Using a proset headset or PR781
> microphone.  Any ideas? The MH1 works fine.
>
>
>
> Fred, K3BHX
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>

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