Mike,
You can get the mic jacks from the RF connection:
http://www.therfc.com/micconn.htm
The 3/16PJ Drake/Collins Mic Jack is the one you
want.
I mounted the jack in a small plastic case along with
a 1/4 mono jack for the headphones. I use a pair of
paralleled audio transformers in the plastic box to
combine a stereo input source into a composite
mono signal so I can use the unmodified headset
with a single op 2 radio setup. The plastic case also
houses the bias circuit for the electret microphone.
Now if I could just get it biased right to work with
the TS-950S, I would be all set.
73 de Mike, W4EF..............
----- Original Message -----
From: "Mike Allisette" <mike.allisette@virgin.net>
To: "Michael Tope" <W4EF@dellroy.com>; <cq-contest@contesting.com>
Sent: Friday, July 18, 2003 11:21 PM
Subject: RE: [CQ-Contest] David Clark H10-40 Headset
> Mike,
>
> I picked up one of these headsets on eBay earlier this year for a song (it
> was listed in the wrong section!). Have yet to try the mic though (operate
> mostly CW). I was after good external attenuation and they really excel in
> this area.
>
> My rig(s) are Icoms (IC765 7 IC 730)which need present 600 ohm mic i/p.
>
> As soon as I find a suitable socket for the mic plug (any ideas where I
can
> get one?) I'll give it a try. I don't want to cut the plug off just yet as
> that would ruin any resale value on the head set.
>
> 73
>
> Mike GU4EON
>
> -----Original Message-----
> From: cq-contest-bounces@contesting.com
> [mailto:cq-contest-bounces@contesting.com]On Behalf Of Michael Tope
> Sent: 18 July 2003 13:07
> To: cq-contest@contesting.com
> Subject: [CQ-Contest] David Clark H10-40 Headset
>
>
> Has anyone had any luck getting decent audio from
> the stock electret microphone element in the David
> Clark H10-40 Headset? I got decent audio from mine
> using my Ten-Tec Paragon, but when I tried it
> with a TS-950 it sounded awful (very distorted).
> In both cases I was using 12V DC bias with a 1.8K
> series resistor, and a 47uF blocking capacitor to
> power the electret mic. Any suggestions?
>
> Thanks,
>
> Mike, W4EF
>
>
>
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