I have a couple of ideas....
1) Use a replacement boom/mic element from Shure - Model WH -20 -
great little dynamic mic element, they use it in their Model 512, SM-2,
SM-10, and WH-20 goose neck boom elements. Use a small screw-bolt and
nut to secure it to the headset body. This will entail drilling a very
small hole in the side of the earphone receiver cup. I did this with
a WH -20 mic I purchased at Dayton for $20, and then drilled a hole in
the cup of a Sennheiser HRD-130 wireless headphone cup. Works swell.
Can be removed and serviced - which is why I did not epoxy it like the
other guy did.
2) OR... Try the stainless steel boom from he Model Shure SM-2,
SM-10, and Model 512. This is the same mic capsule mentioned above -
sounds really good with radio transceivers) - I can provide a photo of
what I am talking about if you like.
3) Various computer microphones headsets send themselves to attaching
a boom mic to a headset ... they can be cannibalized and then
re-purposed for the ham radio task. I can show you photos of this
being done if you like.
4) HEIL had a little boom microphone accessory they tried selling with
their "Quiet Phone" headset. Possibly discontinued, Heil might have a
couple on hand they did not yet sell off. This could be mounted to a
headset easily.
5) Remember the KOSS PRO 4/AA headset weighs a ton (like 22 oz) but
has fabulous audio and ALSO HAS A KNURLED KNOB ON THE LEFT EARPHONE
RECEIVER CUP TO HOLD A BOOM MIC for studio applications. Easy as pie
to mount the above-mentioned Shure mic booms to it.
6) Various other head-worn microphones can be retro-fitted to a
typical headset.... if you are curious, post me and I can go into more
ideas...
7) One way to avoid messing with your usual headphones is to get a
lightweight computer type microphone and WEAR IT AROUND YOUR NECK WITH
THE MIC ELEMENT POINTED UP TOWARD YOU MOUTH, and that is all you need to
do. This is a great solution for short sessions where you don't mind a
second, very lightweight headset sitting on your shoulders. Not
necessarily a permanent solution for long contest or rag chew sessions,
but a quick solution if you are on for a short time.
8) HEIL makes (or used to make) a product called the BM-10 with the
SAME STAINLESS MIC BOOM ARM that Shure uses in the above-mentioned
headsets. It used to sell the mic element and stainless steel boom arm
as a replacement part - or you could cannibalize one of the sets for the
parts, and attach it to the ear cup of your favorite headphones. I can
provide photos of this, also...
Note - See the Shure Model 512 headset - employing
this same stainless steel mic boom arm here:
http://www.shure.com/americas/products/microphones/other/512-headset-microphone
NOTE !!!
As you can see ... there is a little plastic holder
piece that can be sued to mount it to a headset
with a small screw and maybe a washer. It can be
quite nicely done, and still be removable.
See the Heil Quiet Phone with boom mic accessory here:
http://www.universal-radio.com/CATALOG/mics/5263boom.html
NOTE !!!
SAME CONSIDERATIONS apply here ... it CAN be mounted in a
way that does not require epoxy and can be removed for
repairs, retrofitting, modifications, etc. Don't
just super-glue it (ham radio's substitute for duct
tape fix-all) without working with me first !!!
See the Heil BM-10 microphone boom arm in place in ONE WAY but probably
not the best way,... we can do better than this...I can suggest a much
easier way to do this, but here is ONE EXAMPLE:
http://www.freewebs.com/k1dg/boseheadphonemod.htm
See the HEIL BM-10 here -- it may be discontinued, but I bet parts can
be found, and if not, the SAME MIC BOOM is used on the current Shure
models mentioned above.
http://www.universal-radio.com/catalog/mics/4325.html
Another idea here:
http://www.freewebs.com/k1dg/K1EPBoseMod.pdf
THE CLIP IS AVAILABLE AS A REPLACEMENT PART... See it here.
http://www.hamcity.com/store/pc/viewPrd.asp?idproduct=1999
This is a way better way to hook on a boom mic arm than super-glue !
The stainless steel arm is way cool and does NOT get bent or pushed out
of place easily - it MIGHT swivel on its axis (around the pivot screw
holding it tot he earphone cup) but not often if you use a rubber gasket
or washer in the mix.
IF YOU ARE INTERESTED IN ANY OF THESE IDEAS... CONTACT ME AND MAYBE WE
CAN WORK TOGETHER AS I AM PLANNING JUST SUCH A MODIFICATION OF THE KOSS
PRO 4/AA HEADSET SOON. I will likely use the little clip used on these
headsets with a simple nut and bolt arrangement. It will be very clean
and tidy. And great fun. I love headset projects !
I can sen you photos of some of my similar projects if you like.
THESE ARE THE TIP OF A LARGER IDEA ICEBERG... I AM A TOTAL HEADSET
JUNKIE and used to do product testing and write product user reviews on
headsets for a related, but different purpose, speech recognition. No
headset project is too odd to interest me, so post back if you like.
Happy trails.
======================= Richards -K8JHR =========================
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